Commit | Line | Data |
---|---|---|
5df4f04c | 1 | Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 |
2f969cd4 GM |
2 | Free Software Foundation, Inc. |
3 | See the end of the file for license conditions. | |
136211a9 EZ |
4 | |
5 | ||
6 | Summary of changes to "Calc" Preceding 2.00 | |
7 | ------- -- ------- -- ---- --------- ---- | |
8 | ||
9 | ||
10 | Version 2.00: | |
11 | ||
12 | * Changed to compile calc-macs/-maint, to allow "cp *.elc new-dir". | |
13 | ||
14 | * Improved calc-describe-bindings to avoid showing redundant ESC maps. | |
15 | ||
16 | \f | |
17 | Version 2.00 beta 3: | |
18 | ||
19 | * Removed version numbers from most .el files to reduce size of patches. | |
20 | ||
21 | * Added a "calc-version" command. | |
22 | ||
23 | * Changed `M-# ? ?' to allow for modified describe-function. | |
24 | ||
25 | * Changed date parser to accept "Sept" as an alternative for "Sep". | |
26 | ||
27 | * Inhibited answers to exercise from showing up in table of contents. | |
28 | ||
29 | * Changed Makefile to say "texindex calc.[cfkptv]?" to avoid "calc.el". | |
30 | ||
31 | * Fixed up the Makefile in various other ways. | |
32 | ||
33 | * Rearranged banner at top of `h h' command's output. | |
34 | ||
35 | * Changed "make summary" to print "Calc Summary" on the title page. | |
36 | ||
37 | * Added "IntegSimpRules". | |
38 | ||
39 | * Added `M-# :', `M-# _', and `M-# Z' options. | |
40 | ||
41 | * Changed `^' to evaluate "[-3..-1]^-2" properly. | |
42 | ||
43 | * Improved `f g' to give symbolic answers for, e.g., 101:2 and -3:2. | |
44 | ||
45 | * Fixed a bug where `h k RET' didn't find the right place on the page. | |
46 | ||
47 | * Fixed a bug that formatted "x*(y ? a : b)" as "x y ? a : b". | |
48 | ||
49 | * Fixed a bug where defmath translated (< x 0) as (math-posp x)! | |
50 | ||
51 | * Fixed a bug that prevented quick-calc from working sometimes. | |
52 | ||
53 | * Fixed the `z ?' bug again (maybe this time for good?). | |
54 | ||
55 | * Fixed a bug in which `V ^' (vint) was just plain wrong, wrong, wrong! | |
56 | ||
57 | * Scanned for and fixed remaining bugs relating to autoloading. | |
58 | ||
59 | \f | |
60 | Version 2.00 beta 2: | |
61 | ||
62 | * Changed "make info" to try "make texinfo" if "makeinfo" not found. | |
63 | ||
64 | * Changed to "New for Calc 2.00"; texinfo.tex chokes on apostrophes. | |
65 | ||
66 | * Added List Tutorial Exercise 14 (just in case there weren't enough!). | |
67 | ||
68 | * Added a discussion of the `Z F' command to the Programming Tutorial. | |
69 | ||
70 | * Improved `H a f' not to lose info if input is partially pre-factored. | |
71 | ||
72 | * Improved simplification of expressions like sqrt(3) + 3^3:2. | |
73 | ||
74 | * Changed Big mode to omit "*" in expressions like 2 sqrt(3) 5^3:4. | |
75 | ||
76 | * Replaced European date format D/M/Y with D.M.Y. | |
77 | ||
78 | * Changed `a N' and `a X' to consider the endpoints of the interval. | |
79 | ||
80 | * Fixed a bug where TeX mode made c*(1+a/b) look like a function call. | |
81 | ||
82 | * Fixed a bug formatting top-level evalto's while using selections. | |
83 | ||
84 | * Fixed a bug that caused `z ?' to crash. | |
85 | ||
86 | * Fixed a bug where `Z F' broke for argument names "t" and "nil". | |
87 | ||
88 | * Fixed several bugs relating to autoloading. | |
89 | ||
90 | \f | |
91 | Version 2.00 beta 1: | |
92 | ||
93 | * Added "What's new in Calc 2.00" to the manual (summary of info below). | |
94 | ||
95 | * Added support for many GNUPLOT 3.0 features. | |
96 | ||
97 | * Tweaked the Makefile and calc-compile a bit more. | |
98 | ||
99 | * Modified to work with Zawinski's/Furuseth's optimizing byte compiler. | |
100 | ||
101 | * Modified Calc to garbage-collect less often (raised gc-cons-threshold). | |
102 | ||
103 | * Changed quick-calc to avoid autoloading so many parts of Calc. | |
104 | ||
105 | * Changed Calc subfiles to work properly if not byte-compiled. | |
106 | ||
107 | * Renamed `M-# s' to `M-# j', made `M-# s' be equivalent to `h s'. | |
108 | ||
109 | * Changed calc-quit to avoid reapportioning space among other windows. | |
110 | ||
111 | * Added `M-DEL' (calc-pop-above) key, to DEL as LFD is to RET. | |
112 | ||
113 | * Added `{' and `}' to scroll vertically, analogous to `<' and `>'. | |
114 | ||
115 | * Added `m t' for "total" algebraic mode. | |
116 | ||
117 | * Added `d , \' option to group digits with "\,". | |
118 | ||
119 | * Improved support of "prime" accent in "eqn" language mode. | |
120 | ||
121 | * Changed macedit's read-kbd-macro to accept a string argument in Lisp. | |
122 | ||
123 | * Changed calc-check-defines to use a more concise run-hooks linkage. | |
124 | ||
125 | * Changed auto-why mode not to say [w=more] if next msg is not urgent. | |
126 | ||
127 | * Made `a d' able to differentiate "a?b:c" and "a_i" formulas. | |
128 | ||
129 | * Changed probability dist. functions to work with `a f' and `a d'. | |
130 | ||
131 | * Added special constants "phi" and "gamma". | |
132 | ||
133 | * Added "poly" function, simpler cousin of "gpoly". | |
134 | ||
135 | * Added "pdeg", "plead", "pcont", "pprim"; cleaned up "pdiv" and "pgcd". | |
136 | ||
137 | * Added `a p' command for polynomial interpolation. | |
138 | ||
139 | * Added `a I' command for numerical integration; made IntegLimit variable. | |
140 | ||
141 | * Added `a f' to factor polynomials; moved old `a f' to `a "'. | |
142 | ||
143 | * Added `a a' to do partial fraction decompositions. | |
144 | ||
145 | * Improved `a i' to integrate many more kinds of formulas. | |
146 | ||
147 | * Modified `a P' to find numerical roots of high-degree polynomials. | |
148 | ||
149 | * Modified `c 0' through `c 9' to convert int-valued floats to integers. | |
150 | ||
151 | * Made sinh, arctanh, etc., expandable into exps/logs by `a f'. | |
152 | ||
153 | * Added more algebraic simplifications having to do with logs and exps. | |
154 | ||
155 | * Changed `s s', `s t', `s x', `s l' to accept an equation at prompt. | |
156 | ||
157 | * Changed `s i' not to store Decls if its value is the default, []. | |
158 | ||
159 | * Changed `s i' to store in `d O' language mode if in Normal or Big mode. | |
160 | ||
161 | * Rearranged `V M'/`V R' matrix mapping modes. | |
162 | ||
163 | * Added <#1+#2> notation for lambda expressions. | |
164 | ||
165 | * Extended `b l' and other binary shifts to have a 2-argument version. | |
166 | ||
167 | * Changed `u c' and `u t' to give unitless result for unitless input. | |
168 | ||
169 | * Changed sqrt(1-cos(x)^2)-to-sin(x) to be an unsafe simplification. | |
170 | ||
171 | * Improved simplification of sqrts, e.g., sqrt(a^2 x + a^2 y). | |
172 | ||
173 | * Changed solver to treat (x-a)(x-b)(x-c) more intelligently. | |
174 | ||
175 | * Changed Pascal language mode to use "$FFFF" for hexadecimal numbers. | |
176 | ||
177 | * Added support for non-decimal display of floats. | |
178 | ||
179 | * Changed `p' to refresh stack display if current float format uses it. | |
180 | ||
181 | * Changed Big mode to use subscript notation for log10(x), log(x,b), r#nnn. | |
182 | ||
183 | * Changed Big mode to format deriv(u,x) and tderiv(u,x) as du/dx. | |
184 | ||
185 | * Changed Big mode to format integ(1/x,x) as "dx/x" instead of "1/x dx". | |
186 | ||
187 | * Added "tty" output type for graphics commands. | |
188 | ||
189 | * Documented Calc's random number generation algorithm in the manual. | |
190 | ||
191 | * Fixed a bug involving having "(setq calc-timing t)" in .emacs. | |
192 | ||
193 | * Fixed a bug that incorrectly parsed "|x| - 1" in TeX mode. | |
194 | ||
195 | * Fixed bugs and made improvements in `a R' when widening the guess. | |
196 | ||
197 | * Fixed a bug that where `a S' didn't solve (x - a)^2 = (x - b)^2. | |
198 | ||
199 | * Fixed a bug that sometimes crashed `a P' on systems of equations. | |
200 | ||
201 | * Fixed a bug that prevented `b p' (calc-pack-bits) from working. | |
202 | ||
203 | * Fixed some bugs in which certain functions didn't get autoloaded. | |
204 | ||
205 | * Fixed a bug in which the date <1/1/13> was incorrectly parsed. | |
206 | ||
207 | * Fixed a bug which prevented `j D' from expanding (a+b)/c. | |
208 | ||
209 | * Fixed a bug in solver: bad inverses for sinh and cosh. | |
210 | ||
211 | * Fixed a bug in math-possible-signs that failed for x*0. | |
212 | ||
213 | * Fixed a bug where sqrt(-a) was rewritten sqrt(a)*i even if a<0. | |
214 | ||
215 | * Fixed a bug in line breaker when first "word" of line was too long. | |
216 | ||
217 | * Worked around a makeinfo bug that handled @end group/@group badly. | |
218 | ||
219 | \f | |
220 | Version 2.00 alpha 3: | |
221 | ||
222 | * Changed logic for locating component .elc files to be even smarter. | |
223 | ||
224 | * Changed "make install" to "make compile"; added different "make install". | |
225 | ||
226 | * Improved "make compile" to check file dates and compile only when needed. | |
227 | ||
228 | * Made output of "make compile" in batch mode more compact and readable. | |
229 | ||
230 | * Replaced "Quick Overview" in manual with "Demonstration of Calc". | |
231 | ||
232 | * Changed to use keymaps for dispatching M-# and h prefix keys. | |
233 | ||
234 | * Added TAGS target to the Calc Makefile. | |
235 | ||
236 | * Removed most doc strings from functions; new help commands are better. | |
237 | ||
238 | * Got rid of some crufty "fset" calls that were cluttering the code. | |
239 | ||
240 | * Split calc-grab-region into two functions, calc-grab-region/-rectangle. | |
241 | ||
242 | * Swapped positions of stack and trail in full-calc-keypad display. | |
243 | ||
244 | * Improved line-breaking algorithm for displaying long formulas. | |
245 | ||
246 | * Improved display of control characters in vectors shown as strings. | |
247 | ||
248 | * Changed `d o' to allow fraction format to specify desired denominator. | |
249 | ||
250 | * Changed `M-# y' to respect overwrite mode in target buffer. | |
251 | ||
252 | * Added `H' prefix to display-mode commands to suppress stack refresh. | |
253 | ||
254 | * Changed "calc-why" mechanism to display urgent messages automatically. | |
255 | ||
256 | * Handled taking derivatives of symbolic integrals and vice-versa. | |
257 | ||
258 | * Handled integrating vectors of formulas. | |
259 | ||
260 | * Incorporated Ewerlid's polynomial division and GCD functions into Calc. | |
261 | ||
262 | * Improved algebraic operations on "mod" forms, esp. polynomials. | |
263 | ||
264 | * Added some more financial functions (sln, syd, ddb). | |
265 | ||
266 | * Added nest, anest, fixp, and afixp (`H V R' and `H V U') functions. | |
267 | ||
268 | * Added `a .' (calc-remove-equal) command to take apart equations. | |
269 | ||
270 | * Generalized dfact to work for negative odd integers; added !! syntax. | |
271 | ||
272 | * Changed `k f' to factor 1, 0, and negative integers. | |
273 | ||
274 | * Changed `u M', etc., to accept +/- and [ .. ] forms as distributions. | |
275 | ||
276 | * Changed `g q' to remove *Gnuplot Commands/Trail* window if present. | |
277 | ||
278 | * Added support for Francois Pinard's "dumb terminal" driver for GNUPLOT. | |
279 | ||
280 | * Added ":: remember" feature for rewrite rules. | |
281 | ||
282 | * Changed rewrites to let pattern "a*b" match "x/2" with a=x, b=1/2. | |
283 | ||
284 | * Added ability to put function names like "simplify" in rewrite schedule. | |
285 | ||
286 | * Added "Rewrites Tutorial" to the manual. | |
287 | ||
288 | * Changed ` to bind RET as newline instead of finish if editing a vector. | |
289 | ||
290 | * Added some new exercises to the List Tutorial. | |
291 | ||
292 | * Changed `Z F', `V M', etc. not to remove stored vars from def arg list. | |
293 | ||
294 | * Added parsing for /1, 2, 3/ notation for Fortran mode vectors. | |
295 | ||
296 | * Added a "%%" syntax for comments in formulas being read. | |
297 | ||
298 | * Fixed a bug in which failing `h k' removed an existing Info window. | |
299 | ||
300 | * Fixed a bug in `j /' operating on subformulas like "a + b". | |
301 | ||
302 | * Fixed a bug in which "inf = inf" undesirably evaluated to 1. | |
303 | ||
304 | * Fixed a bug that simplified "0 = 1 + a + 2" to "0 = a". | |
305 | ||
306 | * Fixed a bug that failed for rewrite patterns like "fib(1 ||| 2)". | |
307 | ||
308 | * Fixed a bug that arose because rewrite programs are non-reentrant. | |
309 | ||
310 | \f | |
311 | Version 2.00 alpha 2: | |
312 | ||
313 | * Changed LFD terminating algebraic entry to push in no-simplify mode. | |
314 | ||
315 | * Changed so that `K -' interprets `-' as calc-minus, not neg prefix arg. | |
316 | ||
317 | * Improved `h c' command to understand all Calc key sequences. | |
318 | ||
319 | * Fixed problems with DistribRules, NegateRules, and FitRules. | |
320 | ||
321 | * Fixed several bad node pointers in the manual. | |
322 | ||
323 | * Fixed a bug in `h C-w' when used with makeinfo-formatted manuals. | |
324 | ||
325 | * Fixed a bug in sqrt(-1) when Polar and HMS modes are enabled. | |
326 | ||
327 | * Fixed/improved dscalar and deven functions; added dodd. | |
328 | ||
329 | * Fixed a bug in polynomial handling that also affected sum(sin(k),k,1,n). | |
330 | ||
331 | * Fixed various other glitches in the manual. | |
332 | ||
333 | \f | |
334 | Version 2.00 alpha 1: | |
335 | ||
336 | * Calc's tar file now creates a calc-(version) directory to unpack into. | |
337 | ||
338 | * Calc now comes with a Makefile; install with "make install". | |
339 | ||
340 | * Calc now comes already split into many files; installation is much simpler. | |
341 | ||
342 | * Changed base file name of the manual from "calc-info" to "calc.info". | |
343 | ||
344 | * Key binding for `M-# w' was documented but not implemented. | |
345 | ||
346 | * Bound M-# ' to be synonymous with `M-# f' (used to be `M-# q'). | |
347 | ||
348 | * Changed M-# M-# to use last interface of C or K; E no longer counts. | |
349 | ||
350 | * Changed `i' (and `M-# i') not to return to Top node unnecessarily. | |
351 | ||
352 | * Changed `h' to be a prefix key with various help commands. | |
353 | ||
354 | * Changed `s' to be a prefix key with various store and recall commands. | |
355 | ||
356 | * Keys `i', `r', and `l' are obsolete (moved to `h' and `s' prefixes). | |
357 | ||
358 | * Rearranged `K', `X', and `M-RET' keys; `K' is now calc-keep-args. | |
359 | ||
360 | * Changed quick-calc to display input formula as well as output if room. | |
361 | ||
362 | * Changed quick-calc to interact with the editing buffer and kill ring. | |
363 | ||
364 | * Created pack, unpack, unpackt function equivalents of `v p', `v u'. | |
365 | ||
366 | * Changed to expand (a/b)^x to a^x/b^x only if b > 0 (not if a > 0). | |
367 | ||
368 | * Changed math-possible-signs to understand sqrt function. | |
369 | ||
370 | * Changed Z [, rewrites to consider any provably non-zero value as true. | |
371 | ||
372 | * Changed normal language modes to accept ** as a synonym for ^. | |
373 | ||
374 | * Added "maple" language mode. | |
375 | ||
376 | * Changed, e.g., Mathematica "(2 + 3 I)^(1.23*10^20)" to include parens. | |
377 | ||
378 | * Generalized math-compose-big properties for all language modes. | |
379 | ||
380 | * Introduced "string" and other function for composing expressions. | |
381 | ||
382 | * Changed many recursive vector routines to use loops instead. | |
383 | ||
384 | * Added evalv, evalvn function equivalents to `=', `N'. | |
385 | ||
386 | * Changed "expr =>" not to evaluate at all if in no-simplify mode. | |
387 | ||
388 | * Redesigned user interface of `a F' (calc-curve-fit) command. | |
389 | ||
a1506d29 | 390 | * Added "phase" feature to the rewrite rule system. |
136211a9 EZ |
391 | |
392 | * Added "&&&", "|||", "!!!" to the rewrite rule system. | |
393 | ||
394 | * Introduced a new notation for rewrites: LHS := RHS :: COND. | |
395 | ||
396 | * Changed `a r' (but not `j r') to repeat 100 times by default. | |
397 | ||
398 | * Integrated EvalRules more cleanly into the default simplifications. | |
399 | ||
400 | * Added `H v l' [mdims] to measure the dimensions of a matrix. | |
401 | ||
402 | * Changed `u c' to interpret "/units" as "1/units". | |
403 | ||
404 | * Added `u a' to adjust unit prefix letters automatically. | |
405 | ||
406 | * Changed `u s' to enable scalar mode while simplifying. | |
407 | ||
408 | * Changed `c f' [pfloat] not to float integer powers or subscripts. | |
409 | ||
410 | * Added a three-argument form for the "hms" function. | |
411 | ||
412 | * Changed, e.g., sin(90) degrees to produce 1 instead of 1.0. | |
413 | ||
414 | * Changed symbolic mode to prefer sqrt(int): abs([1 2 3]) => sqrt(14). | |
415 | ||
416 | * Enhanced solver to handle, e.g., x + 1/x = a; exp(x) + exp(-x) = a. | |
417 | ||
418 | * Enhanced simplifier to handle, e.g., exp(a+2) / e^a => e^2. | |
419 | ||
420 | * Enhanced `a s' to simplify sqrt(x) - x^1:2 and exp(x) - e^x to 0. | |
421 | ||
422 | * Added -(a + b) to -a - b as a default simplification. | |
423 | ||
424 | * Added rules for differentiating sum() and prod() functions. | |
425 | ||
426 | * Added a few more energy units (due to Przemek Klosowski). | |
427 | ||
428 | * Added overflow/underflow checking for all floating-point arithmetic. | |
429 | ||
430 | * Extended error forms to work with complex numbers. | |
431 | ||
432 | * Generalized GCD to handle fractional arguments. | |
433 | ||
434 | * Changed graphics routines to evaluate "x" values, e.g., [-pi .. pi]. | |
435 | ||
436 | * Added `g q', like `g K' but without viewing the Gnuplot Trail. | |
437 | ||
438 | * Changed `g p' and `V M' to display better "Working..." messages. | |
439 | ||
440 | * Modified `M-# g' to be more robust about grabbing formulas. | |
441 | ||
442 | * Added `Y' prefix key reserved for user-written extensions. | |
443 | ||
444 | * Added calc-load-hook and calc-ext-load-hook. | |
445 | ||
446 | * Prevented calc-install from leaving large ~ files behind. | |
447 | ||
448 | * Changed @bullet to @bullet{} in manual to conform to texinfo spec. | |
449 | ||
450 | * Rearranged some chapters in the manual to be a bit more logical. | |
451 | ||
452 | * Added calc-split-summary command. | |
453 | ||
454 | * Fixed several bugs in embedded mode. | |
455 | ||
456 | * Fixed a bug in calc-vector-covariance that required a prefix arg. | |
457 | ||
458 | * Fixed a bug that prevented parsing "a=>" with no right-hand side. | |
459 | ||
460 | * Fixed a bug which allowed incorrectly dividing a vector by a vector. | |
461 | ||
462 | * Fixed a bug formatting sum(...)^2 in Big mode. | |
463 | ||
464 | * Fixed a bug that prevented Calc from deleting old graphics temp files. | |
465 | ||
466 | * Fixed some typos calling calc-inverse-func instead of calc-invert-func. | |
467 | ||
468 | * Fixed bugs in the derivatives of conj, deg, and rad; added re, im. | |
469 | ||
470 | * Fixed a bug where (r;theta) parsed as r exp(theta i) even in Deg mode. | |
471 | ||
472 | * Fixed a bug which gave wrong answer for exp of a polar complex number. | |
473 | ||
474 | * Fixed a bug in `Z F' that failed if formula used non-arg variables. | |
475 | ||
476 | * Fixed a bad pointer to Info node "Assignments in Embedded Mode". | |
477 | ||
478 | * Fixed several errors in the Calc Summary. | |
479 | ||
480 | \f | |
481 | Version 1.08 beta 1: | |
482 | ||
483 | * Calc's copyright has been assigned to FSF, for inclusion in Emacs 19! | |
484 | ||
485 | * Changed M-# to be a two-key sequence; use M-# M-# to start Calc now. | |
486 | ||
487 | * Rewrote and expanded the introductory chapter of the manual. | |
488 | ||
489 | * Added a key and function summary to the manual. | |
490 | ||
491 | * Changed the manual to take better advantage of TeX's math formatting. | |
492 | ||
493 | * Changed manual to be printable in @smallbook format. | |
494 | ||
495 | * Added "calc-embedded" mode. | |
496 | ||
497 | * Added "=>" [evalto] operator. | |
498 | ||
499 | * Added facilities for date and date/time arithmetic. | |
500 | ||
501 | * Added a set of financial functions (pv, fv, etc.). | |
502 | ||
503 | * Added infinite quantities inf, uinf, and nan (plus infinite intervals). | |
504 | ||
505 | * Added "EvalRules", "SimpRules", and "ExtSimpRules" variables. | |
506 | ||
507 | * Added sum and product commands `a +', `a -', `a *', `a T'. | |
508 | ||
509 | * Enhanced `a S' and `a P' to solve systems of equations. | |
510 | ||
511 | * Enhanced solver to handle eqns like sin(x) = cos(2 x), sqrt(x) + x = 1. | |
512 | ||
513 | * Added `a M' (calc-map-equation) command. | |
514 | ||
515 | * Added new statistical functions: mean, standard deviation, etc. | |
516 | ||
517 | * Added line, polynomial, and curve fitting commands (`a L' and `a F'). | |
518 | ||
519 | * Added support for composite units, e.g., "mi+ft+in". | |
520 | ||
521 | * Enhanced "Big" mode to format square roots, choose, and powers better. | |
522 | ||
523 | * Enhanced "Big" mode to display fractions in large notation. | |
524 | ||
525 | * Added several alternate formats for matrix display. | |
526 | ||
527 | * Changed TeX mode to write "(1 + x^2)" instead of "\left(1 + x^2\right)". | |
528 | ||
529 | * Added support for relational operators in TeX and FORTRAN modes. | |
530 | ||
531 | * Added recognition of accents like \dot, \tilde, \underline in TeX mode. | |
532 | ||
533 | * Added "eqn" language mode. | |
534 | ||
535 | * Added extra control over display justification with `d <', `d =', `d >'. | |
536 | ||
537 | * Added calc-left-label and calc-right-label (`d {', `d }'). | |
538 | ||
539 | * Added "nn%" syntax for algebraic formulas; equivalent to "nn * .01". | |
540 | ||
541 | * Added input syntaxes like a = b = c, a != b != c, a <= b < c. | |
542 | ||
543 | * Changed "_" to mean subscripts; old use of "_" in vars is now "#". | |
544 | ||
545 | * Introduced "matrix mode" and "scalar mode" (`m v'). | |
546 | ||
547 | * Introduced generic identity matrices (idn(1)). | |
548 | ||
549 | * Added a method for declaring variables to be real, integer, > 0, etc. | |
550 | ||
551 | * Added `Z S' command for editing stored value of a variable. | |
552 | ||
553 | * Added "subst" algebraic function equivalent to the `a b' command. | |
554 | ||
555 | * Added `a f' command, changed deriv/integ/solve-for to use it. | |
556 | ||
557 | * Improved `a s' to simplify (x + y) (y + x) to (x + y)^2. | |
558 | ||
559 | * Improved `a s' to simplify i^2 to -1. | |
560 | ||
561 | * Improved `a s' to simplify, e.g., sin(pi/3) in Symbolic mode. | |
562 | ||
563 | * Improved `a s' to simplify sqrt(8) to 2 sqrt(2), 1/sqrt(2) to sqrt(2)/2. | |
564 | ||
565 | * Moved sin(arccos(x)) from `a e' to `a s'; not unsafe after all! | |
566 | ||
567 | * Changed (x y)^z => x^z y^z to be a usually-unsafe simplification. | |
568 | ||
569 | * Added thorough documentation of `a s' and `a e' to the manual. | |
570 | ||
571 | * Improved `a c' to collect "f(a)" even if "a" also appears elsewhere. | |
572 | ||
573 | * Introduced lin, linnt, islin, islinnt functions for linearity testing. | |
574 | ||
575 | * Improved `a x' to use binomial theorem to give simpler answers. | |
576 | ||
577 | * Improved `j D' to distribute powers of sums: (a + b)^n. | |
578 | ||
579 | * Improved `j M' to merge products of powers (may need no-simplify mode). | |
580 | ||
581 | * Changed to use defvar for DistribRules etc. so `Z V' works with them. | |
582 | ||
583 | * Improved `j *' and `j /' to work properly in a few more cases. | |
584 | ||
585 | * Improved `V R' to use identity value when reducing empty vectors. | |
586 | ||
587 | * Improved `v p' and `v u' to support more complex packing operations. | |
588 | ||
589 | * Disabled automatic simplification of sqrt(2)/2 to 1/sqrt(2). | |
590 | ||
591 | * Bound SPC and RET to press, TAB to next-menu in *Calc Keypad* buffer. | |
592 | ||
593 | * Added C-u ' to do algebraic entry with language mode forced to normal. | |
594 | ||
595 | * Added "$1", "$2", etc. input notation for algebraic entry. | |
596 | ||
597 | * Changed unary operators like `n', `&' to treat neg prefix args like RET. | |
598 | ||
599 | * Changed ` (calc-edit) to show full precision regardless of float format. | |
600 | ||
601 | * Enhanced quick-calc to display integers in several formats. | |
602 | ||
603 | * Documented `g H' (calc-graph-hide) command (had been left from manual). | |
604 | ||
605 | * Enhanced floor/ceil/trunc/round in several ways. | |
606 | ||
607 | * Added rounde and roundu functions. | |
608 | ||
609 | * Changed `c 1' through `c 9' to change small floats to 0.0; added `c 0'. | |
610 | ||
611 | * Enhanced set operations to work on sets of intervals. | |
612 | ||
613 | * Fixed erf(0), utpn(x,x,y), and arccosh(-1) to work properly. | |
614 | ||
615 | * Changed complex arctan and arctanh to follow Steele 2nd edition. | |
616 | ||
617 | * Expanded "Branch Cuts" section of the manual with some useful tables. | |
618 | ||
619 | * Rearranged order of words in mode line to be a bit more logical. | |
620 | ||
621 | * Changed `m N' (num-simplify) mode to evaluate constant vectors, too. | |
622 | ||
623 | * Changed `a r'/`j r' to prompt twice for separate LHS/RHS if necessary. | |
624 | ||
625 | * Enhanced `let(v,x)' in rewrites by allowing arbitrary patterns for v. | |
626 | ||
627 | * Changed cursor positioning in second prompt for `a b' (calc-substitute). | |
628 | ||
629 | * Changed `y' to omit line numbers more consistently. | |
630 | ||
631 | * Changed `o' (calc-realign) to reset horizontal scrolling to zero, also. | |
632 | ||
633 | * Added "pred" mode for calc-eval. | |
634 | ||
635 | * Added "calc-report-bug" as an alias for "report-calc-bug". | |
636 | ||
637 | * Added `Z T' and "calc-pass-errors" to aid debugging Calc-related code. | |
638 | ||
639 | * Added "calc-load-everything" (`m X' or `M-# L') command. | |
640 | ||
641 | * Enhanced calc-install to pre-build units table, CommuteRules, etc. | |
642 | ||
643 | * Changed Calc to interact more gracefully with load-path. | |
644 | ||
645 | * Changed Lisp Variable Index in manual to include user variables, too. | |
646 | ||
647 | * Fixed a bug that prevented calc-install from working under VMS. | |
648 | ||
649 | * Fixed a bug that sometimes crashed rewrites dealing with subtractions. | |
650 | ||
651 | * Fixed a bug that prevented `a S' from solving "3 - x = 1 + x"! | |
652 | ||
653 | * Fixed a bug in solver that crashed for certain cubics and quartics. | |
654 | ||
655 | * Fixed a bug in calc-simplify that crashed for equations and ineqs. | |
656 | ||
657 | * Fixed a bug which placed the "[" oddly in `d B' + `v /' mode. | |
658 | ||
659 | * Fixed a bug where finishing calc-edit improperly obeyed language mode. | |
660 | ||
661 | * Fixed a bug formatting (-1)^n in Big mode after selection commands. | |
662 | ||
663 | * Fixed a bug that got ">=" and "<=" backwards in rewrite conditions. | |
664 | ||
665 | * Fixed a bug that broke the `"x"' key in calc-keypad mode. | |
666 | ||
667 | * Fixed a bug in which `MAP$' in calc-keypad didn't display "Working...". | |
668 | ||
669 | * Fixed a bug where matrix division gave bad result for singular matrix. | |
670 | ||
671 | * Fixed a bug which closed Calc window if calc-grab-region got an error. | |
672 | ||
673 | * Fixed a bug where `a s' failed on formulas containing dimension errors. | |
674 | ||
675 | * Fixed a bug that caused `m F' to hang. | |
676 | ||
677 | * Fixed a bug in complex arithmetic that caused problems with solver. | |
678 | ||
679 | * Fixed a bug which raised intervals to interval powers incorrectly. | |
680 | ||
681 | * Fixed a bug in utpp/ltpp (order of arguments did not match the manual). | |
682 | ||
683 | * Fixed a bug in which `t y' rounded yanked data with old precision. | |
684 | ||
685 | * Fixed a bug in which "in(3, [3 .. 3))" returned true. | |
686 | ||
687 | * Fixed a bug which simplified abs(abs(x)) incorrectly. | |
688 | ||
689 | * Fixed a bug in which (a^2)^1:3 was unsafely simplified to a^2:3. | |
690 | ||
691 | * Fixed a bug in rewrite system which missed pattern "2 sin(x) cos(x)". | |
692 | ||
693 | * Fixed a bug in rewrite system which missed pattern "a - a cos(x)^2". | |
694 | ||
695 | * Fixed obsolete trail tags gsmp, gneg, ginv to jsmp, jneg, jinv. | |
696 | ||
697 | * Fixed some errors and made improvements in units table [Ulrich Mueller]. | |
698 | ||
699 | \f | |
700 | Version 1.07: | |
701 | ||
702 | * Added `m F' (calc-settings-file-name) command. | |
703 | ||
704 | * Added calc-autoload-directory variable. | |
705 | ||
706 | * Extended Z ` to accept a prefix argument. | |
707 | ||
708 | * Added keystrokes (v h, v k) for head, tail, cons. | |
709 | ||
710 | * Extended `v e' to accept a vector as the filler. | |
711 | ||
712 | * Changed `V M', `V R' to accept mapping-mode keys in uppercase, too. | |
713 | ||
714 | * Changed V M ' etc. to accept $, $$, ... as argument indicators. | |
715 | ||
716 | * Changed `t y' to accept a prefix argument. | |
717 | ||
718 | * Put in a cleaner and safer random number generator for `k r' et al. | |
719 | ||
720 | * Fixed a bug which completely broke `a r' command! | |
721 | ||
722 | * Fixed "0 * matrix" to generate a zero matrix instead of 0. | |
723 | ||
724 | * Fixed a bug in `a R' which sometimes caused it to crash. | |
725 | ||
726 | * Fixed a fatal typo in the TeX version of the manual. | |
727 | ||
728 | * Fixed a bug that prevented C-k, C-w, M-w from working in Trail buffer. | |
729 | ||
730 | * Fixed another bug in `Z P' command. | |
731 | ||
732 | * Fixed a bug in `u s' which incorrectly simplified subtractions. | |
733 | ||
734 | * Fixed an argument-name aliasing bug evaluating lambda( ) formulas. | |
735 | ||
736 | * Fixed overfull hboxes in the manual. | |
737 | ||
738 | * Fixed various other bugs in the manual. | |
739 | ||
740 | \f | |
741 | Version 1.06: | |
742 | ||
743 | * Added "calc-keypad" mode for X window system users (try it!). | |
744 | ||
745 | * Improved "calc-eval" for calling/operating Calc from user-written Lisp. | |
746 | ||
747 | * Moved vector accumulate command to `V U' (old `H V R' still supported). | |
748 | ||
749 | * Added right-to-left reductions: `I V R' and `I V U'. | |
750 | ||
751 | * Added set operations on vectors: intersect, union, diff, xor. | |
752 | ||
753 | * Added `I v s' to remove a subvector from a vector. | |
754 | ||
755 | * Introduced `H |' to append two vectors with no magical special cases. | |
756 | ||
757 | * Introduced rhead, rtail, and rcons for isolating last vector element. | |
758 | ||
759 | * Changed `g p' to keep temp files around until data actually change. | |
760 | ||
761 | * Improved `a S' to solve many higher-order polynomial equations. | |
762 | ||
763 | * Added `a P' to produce a vector of all solutions to an equation. | |
764 | ||
765 | * Enhanced `a v' and `j v' to allow top-level-only evaluation. | |
766 | ||
767 | * Changed `j DEL' to delete a side of an eqn or ineq, leaving other side. | |
768 | ||
769 | * Fixed binding for keys `j 1' through `j 9'. | |
770 | ||
771 | * Introduced "let" marker in rewrite rules. | |
772 | ||
773 | * Enhanced the "sign" function to provide a two-argument version. | |
774 | ||
775 | * Changed "max-specpdl-size exceeded" error message to be user-friendly. | |
776 | ||
777 | * Put "<Aborted>" in the trail in above case and when user presses C-g. | |
778 | ||
779 | * Changed TeX mode to generate \ldots instead of \dots, recognize both. | |
780 | ||
781 | * Changed "sin(0)" etc. (for integer 0) to generate "0" instead of "0.". | |
782 | ||
783 | * Enhanced Programming Tutorial exercise 2. | |
784 | ||
785 | * Fixed an error in the answer to Types Tutorial exercise 3. | |
786 | ||
787 | * Fixed several bugs relating to head, tail, and cons functions. | |
788 | ||
789 | * Fixed some other minor typos in the manual. | |
790 | ||
791 | * Fixed several bugs in `Z P' (calc-user-define-permanent). | |
792 | ||
793 | * Fixed several bugs that broke the `g P' command. | |
794 | ||
795 | \f | |
796 | Version 1.05: | |
797 | ||
798 | * Created a calc-install command to ease installation. | |
799 | ||
800 | * Added lots of exercises to the Tutorial section of the manual. | |
801 | ||
802 | * Added ability to select and operate on sub-formulas. | |
803 | ||
804 | * Substantially improved the algebraic rewrite-rule system. | |
805 | ||
806 | * Added a set of graphing commands that use GNUPLOT. | |
807 | ||
808 | * Added a command (`a R') for finding numerical roots to equations. | |
809 | ||
810 | * Added several new math functions, such as erf and Bessel functions. | |
811 | ||
812 | * Added key bindings for miscellaneous commands using the "f" prefix key. | |
813 | ||
814 | * Added lots of new vector operations, many of them in the spirit of APL. | |
815 | ||
816 | * Added more control over vector display, including an abbreviated mode. | |
817 | ||
818 | * Improved keyboard macro editing; added read-kbd-macro to macedit.el. | |
819 | ||
820 | * Introduced the `m S' (calc-shift-prefix) command. | |
821 | ||
822 | * Enhanced the calc-edit command in several ways. | |
823 | ||
824 | * Made it possible to hit ` (calc-edit) during numeric/algebraic entry. | |
825 | ||
826 | * Enhanced the calc-solve-for command to handle inequalities. | |
827 | ||
828 | * Enhanced calc-simplify to handle equations and inequalities. | |
829 | ||
830 | * Taught log10 and log to look for exact integer or rational results. | |
831 | ||
832 | * Added ability to take Nth roots directly. | |
833 | ||
834 | * Added "increment" and "decrement" commands for integers and floats. | |
835 | ||
836 | * Added "full-help" command, changed "h" key to invoke it. | |
837 | ||
838 | * Added special help for Inverse and Hyperbolic prefixes. | |
839 | ||
840 | * Added an optional prefix argument to `o' (calc-realign). | |
841 | ||
842 | * Changed `t s' and `t r' to use RET as the search exit key. | |
843 | ||
844 | * Made handling of operator keys for V M, V R, etc. more regular. | |
845 | ||
846 | * Improved TeX mode; added support for \matrix format. | |
847 | ||
848 | * Added a variant of `m a' mode that only affects ( and [ keys. | |
849 | ||
850 | * Fixed "Mismatch" message for algebraic entry of semi-open intervals. | |
851 | ||
852 | * Trimmed fat from calc.el to speed loading, moved more to calc-ext.el. | |
853 | ||
854 | * Fixed a bug in which minibuffer entry rounded to out-of-date precision. | |
855 | ||
856 | * Fixed a bug which crashed Calc 1.04 under Epoch. | |
857 | ||
858 | * Fixed a bug which messed up Calc Trail's mode line, among other things. | |
859 | ||
860 | * Fixed a bug which caused trail ">" to show only when in Trail buffer. | |
861 | ||
862 | * Fixed a bug in which "calc" called "calc-grab-region" with too few args. | |
863 | ||
864 | * Fixed bugs in both implementation and documentation of calc-perm. | |
865 | ||
866 | * Fixed a bug in which calc-simplify-extended always used radians. | |
867 | ||
868 | * Fixed a bug where calc-comma failed to override "polar" mode. | |
869 | ||
870 | * Fixed a bug doing mixed arithmetic on rectangular+polar complex numbers. | |
871 | ||
872 | * Fixed several bugs in transcendental functions with complex arguments. | |
873 | ||
874 | * Fixed a bug in which `a s' simplified "x / .5" to ".5 x". | |
875 | ||
876 | * Fixed numerous other bugs in various parts of Calc. | |
877 | ||
878 | * Completed the "Hooks" section of the "Internals" chapter of the manual. | |
879 | ||
880 | \f | |
881 | Version 1.04: | |
882 | ||
883 | * Included a copy of revision history (from README) in calc.el. | |
884 | ||
885 | * Added the "calc-split" feature to split calc-ext.el into smaller bits. | |
886 | ||
887 | * Changed calc-unpack to unpack floats and fractions, too. | |
888 | ||
889 | * Added "mant", "xpon", and "scf" functions for decomposing floats. | |
890 | ||
891 | * Fixed a bug in the "y" command with positive prefix arguments. | |
892 | ||
893 | * Rearranged binary shift/rotate command keys to be a bit more convenient. | |
894 | ||
895 | * Fixed a bug in which simplifying "(0/0) * 2" crashed with a Lisp error. | |
896 | ||
897 | * Made `H F' [ffloor] and friends faster for very large arguments. | |
898 | ||
899 | * Made calc-define-del more robust. | |
900 | ||
901 | * Handled pasting of data into the Calculator using the mouse under X. | |
902 | ||
903 | * Made overlay-arrow variables buffer-local to avoid interference. | |
904 | ||
905 | * Fixed a problem in which Calc Trail buffer got stuck after a C-x C-w. | |
906 | ||
907 | \f | |
908 | Version 1.03: | |
909 | ||
910 | * Changed math-choose to compute n-choose-m faster when m is large. | |
911 | ||
912 | * Fixed some problems with TeX mode. | |
913 | ||
914 | * Fixed a bug that prevented `b s' from working without a prefix argument. | |
915 | ||
916 | * Added "calc-eval" function. | |
917 | ||
918 | * Improved calc-grab-region. | |
919 | ||
920 | \f | |
921 | Version 1.02: | |
922 | ||
923 | * Fixed a bug in Tutorial: telephone pole height/distance were switched! | |
924 | ||
925 | * Fixed a few other things in the manual. | |
926 | ||
927 | * Added "full-calc" command. | |
928 | ||
929 | * Added "calc-insert-variables" (`Z I') command. | |
930 | ||
931 | * Quick Calc now works even if you are already in the minibuffer. | |
932 | ||
933 | * Fixed a bug in math-mul-bignum-digit which affected math-and, etc. | |
934 | ||
935 | * Definition of "Hectares" was wrong in units table. | |
936 | ||
937 | * Fixed a bug in calc-execute-kbd-macro concerning undo and refresh. | |
938 | ||
939 | * Bound "calc-undo" to `C-x u' as well as `C-_' and `U'. | |
940 | \f | |
941 | Version 1.01: | |
942 | ||
943 | * Added a tutorial section to the manual. | |
944 | ||
945 | * Next and Prev for node Strings in the manual were reversed; fixed. | |
946 | ||
947 | * Changed "'bignum" in calc-isqrt-bignum-iter to "'bigpos". | |
948 | ||
949 | * Fixed a bug that prevented "$" from working during algebraic entry. | |
950 | ||
951 | * Fixed a bug caused by an X (last-X) command following a K (macro) cmd. | |
952 | ||
953 | * Fixed a bug in which K command incorrectly formatted stack in Big mode. | |
954 | ||
955 | * Added space between unary operators and non-flat compositions. | |
956 | (Otherwise, "-(a/b)" in Big mode blended the minus sign into the rule!) | |
957 | ||
958 | * Fixed formatting of (-1)^n in Big mode. | |
959 | ||
960 | * Fixed some problems relating to "not" operator in Pascal language mode. | |
961 | ||
962 | * Fixed several bugs relating to V M ' and V M $ sequences. | |
963 | ||
964 | * Fixed matrix-vector multiplication to produce a vector. | |
965 | ||
966 | * Introduced Z ` ... Z ' commands; renamed old Z ' to Z #. | |
967 | ||
968 | * Fixed various other bugs. | |
969 | ||
970 | * Added calc-settings-file variable suggested by C. Witty. | |
971 | ||
972 | \f | |
973 | Version 1.00: | |
974 | ||
975 | * First official release of Calc. | |
976 | ||
977 | * If you used the Beta test version (0.01), you will find that this | |
978 | version of Calc is over 50% larger than the original release. | |
979 | General areas of improvement include much better algebra features; | |
980 | operations on units; language modes; simplification modes; interval | |
981 | arithmetic; vector mapping and reduction. Other new commands include | |
982 | calc-fraction and calc-grab-region. The program has been split into | |
983 | two parts for faster loading, and the manual is more complete. | |
984 | ||
2f969cd4 GM |
985 | \f |
986 | This file is part of GNU Emacs. | |
987 | ||
662c9c64 | 988 | GNU Emacs is free software: you can redistribute it and/or modify |
2f969cd4 | 989 | it under the terms of the GNU General Public License as published by |
662c9c64 GM |
990 | the Free Software Foundation, either version 3 of the License, or |
991 | (at your option) any later version. | |
2f969cd4 GM |
992 | |
993 | GNU Emacs is distributed in the hope that it will be useful, | |
994 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
995 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
996 | GNU General Public License for more details. | |
997 | ||
998 | You should have received a copy of the GNU General Public License | |
662c9c64 | 999 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |