Commit | Line | Data |
---|---|---|
95df8112 | 1 | Copyright (C) 2001-2011 Free Software Foundation, Inc. |
2f969cd4 | 2 | See the end of the file for license conditions. |
136211a9 EZ |
3 | |
4 | ||
5 | Summary of changes to "Calc" Preceding 2.00 | |
6 | ------- -- ------- -- ---- --------- ---- | |
7 | ||
8 | ||
9 | Version 2.00: | |
10 | ||
11 | * Changed to compile calc-macs/-maint, to allow "cp *.elc new-dir". | |
12 | ||
13 | * Improved calc-describe-bindings to avoid showing redundant ESC maps. | |
14 | ||
15 | \f | |
16 | Version 2.00 beta 3: | |
17 | ||
18 | * Removed version numbers from most .el files to reduce size of patches. | |
19 | ||
20 | * Added a "calc-version" command. | |
21 | ||
22 | * Changed `M-# ? ?' to allow for modified describe-function. | |
23 | ||
24 | * Changed date parser to accept "Sept" as an alternative for "Sep". | |
25 | ||
26 | * Inhibited answers to exercise from showing up in table of contents. | |
27 | ||
28 | * Changed Makefile to say "texindex calc.[cfkptv]?" to avoid "calc.el". | |
29 | ||
30 | * Fixed up the Makefile in various other ways. | |
31 | ||
32 | * Rearranged banner at top of `h h' command's output. | |
33 | ||
34 | * Changed "make summary" to print "Calc Summary" on the title page. | |
35 | ||
36 | * Added "IntegSimpRules". | |
37 | ||
38 | * Added `M-# :', `M-# _', and `M-# Z' options. | |
39 | ||
40 | * Changed `^' to evaluate "[-3..-1]^-2" properly. | |
41 | ||
42 | * Improved `f g' to give symbolic answers for, e.g., 101:2 and -3:2. | |
43 | ||
44 | * Fixed a bug where `h k RET' didn't find the right place on the page. | |
45 | ||
46 | * Fixed a bug that formatted "x*(y ? a : b)" as "x y ? a : b". | |
47 | ||
48 | * Fixed a bug where defmath translated (< x 0) as (math-posp x)! | |
49 | ||
50 | * Fixed a bug that prevented quick-calc from working sometimes. | |
51 | ||
52 | * Fixed the `z ?' bug again (maybe this time for good?). | |
53 | ||
54 | * Fixed a bug in which `V ^' (vint) was just plain wrong, wrong, wrong! | |
55 | ||
56 | * Scanned for and fixed remaining bugs relating to autoloading. | |
57 | ||
58 | \f | |
59 | Version 2.00 beta 2: | |
60 | ||
61 | * Changed "make info" to try "make texinfo" if "makeinfo" not found. | |
62 | ||
63 | * Changed to "New for Calc 2.00"; texinfo.tex chokes on apostrophes. | |
64 | ||
65 | * Added List Tutorial Exercise 14 (just in case there weren't enough!). | |
66 | ||
67 | * Added a discussion of the `Z F' command to the Programming Tutorial. | |
68 | ||
69 | * Improved `H a f' not to lose info if input is partially pre-factored. | |
70 | ||
71 | * Improved simplification of expressions like sqrt(3) + 3^3:2. | |
72 | ||
73 | * Changed Big mode to omit "*" in expressions like 2 sqrt(3) 5^3:4. | |
74 | ||
75 | * Replaced European date format D/M/Y with D.M.Y. | |
76 | ||
77 | * Changed `a N' and `a X' to consider the endpoints of the interval. | |
78 | ||
79 | * Fixed a bug where TeX mode made c*(1+a/b) look like a function call. | |
80 | ||
81 | * Fixed a bug formatting top-level evalto's while using selections. | |
82 | ||
83 | * Fixed a bug that caused `z ?' to crash. | |
84 | ||
85 | * Fixed a bug where `Z F' broke for argument names "t" and "nil". | |
86 | ||
87 | * Fixed several bugs relating to autoloading. | |
88 | ||
89 | \f | |
90 | Version 2.00 beta 1: | |
91 | ||
92 | * Added "What's new in Calc 2.00" to the manual (summary of info below). | |
93 | ||
94 | * Added support for many GNUPLOT 3.0 features. | |
95 | ||
96 | * Tweaked the Makefile and calc-compile a bit more. | |
97 | ||
98 | * Modified to work with Zawinski's/Furuseth's optimizing byte compiler. | |
99 | ||
100 | * Modified Calc to garbage-collect less often (raised gc-cons-threshold). | |
101 | ||
102 | * Changed quick-calc to avoid autoloading so many parts of Calc. | |
103 | ||
104 | * Changed Calc subfiles to work properly if not byte-compiled. | |
105 | ||
106 | * Renamed `M-# s' to `M-# j', made `M-# s' be equivalent to `h s'. | |
107 | ||
108 | * Changed calc-quit to avoid reapportioning space among other windows. | |
109 | ||
110 | * Added `M-DEL' (calc-pop-above) key, to DEL as LFD is to RET. | |
111 | ||
112 | * Added `{' and `}' to scroll vertically, analogous to `<' and `>'. | |
113 | ||
114 | * Added `m t' for "total" algebraic mode. | |
115 | ||
116 | * Added `d , \' option to group digits with "\,". | |
117 | ||
118 | * Improved support of "prime" accent in "eqn" language mode. | |
119 | ||
120 | * Changed macedit's read-kbd-macro to accept a string argument in Lisp. | |
121 | ||
122 | * Changed calc-check-defines to use a more concise run-hooks linkage. | |
123 | ||
124 | * Changed auto-why mode not to say [w=more] if next msg is not urgent. | |
125 | ||
126 | * Made `a d' able to differentiate "a?b:c" and "a_i" formulas. | |
127 | ||
128 | * Changed probability dist. functions to work with `a f' and `a d'. | |
129 | ||
130 | * Added special constants "phi" and "gamma". | |
131 | ||
132 | * Added "poly" function, simpler cousin of "gpoly". | |
133 | ||
134 | * Added "pdeg", "plead", "pcont", "pprim"; cleaned up "pdiv" and "pgcd". | |
135 | ||
136 | * Added `a p' command for polynomial interpolation. | |
137 | ||
138 | * Added `a I' command for numerical integration; made IntegLimit variable. | |
139 | ||
140 | * Added `a f' to factor polynomials; moved old `a f' to `a "'. | |
141 | ||
142 | * Added `a a' to do partial fraction decompositions. | |
143 | ||
144 | * Improved `a i' to integrate many more kinds of formulas. | |
145 | ||
146 | * Modified `a P' to find numerical roots of high-degree polynomials. | |
147 | ||
148 | * Modified `c 0' through `c 9' to convert int-valued floats to integers. | |
149 | ||
150 | * Made sinh, arctanh, etc., expandable into exps/logs by `a f'. | |
151 | ||
152 | * Added more algebraic simplifications having to do with logs and exps. | |
153 | ||
154 | * Changed `s s', `s t', `s x', `s l' to accept an equation at prompt. | |
155 | ||
156 | * Changed `s i' not to store Decls if its value is the default, []. | |
157 | ||
158 | * Changed `s i' to store in `d O' language mode if in Normal or Big mode. | |
159 | ||
160 | * Rearranged `V M'/`V R' matrix mapping modes. | |
161 | ||
162 | * Added <#1+#2> notation for lambda expressions. | |
163 | ||
164 | * Extended `b l' and other binary shifts to have a 2-argument version. | |
165 | ||
166 | * Changed `u c' and `u t' to give unitless result for unitless input. | |
167 | ||
168 | * Changed sqrt(1-cos(x)^2)-to-sin(x) to be an unsafe simplification. | |
169 | ||
170 | * Improved simplification of sqrts, e.g., sqrt(a^2 x + a^2 y). | |
171 | ||
172 | * Changed solver to treat (x-a)(x-b)(x-c) more intelligently. | |
173 | ||
174 | * Changed Pascal language mode to use "$FFFF" for hexadecimal numbers. | |
175 | ||
176 | * Added support for non-decimal display of floats. | |
177 | ||
178 | * Changed `p' to refresh stack display if current float format uses it. | |
179 | ||
180 | * Changed Big mode to use subscript notation for log10(x), log(x,b), r#nnn. | |
181 | ||
182 | * Changed Big mode to format deriv(u,x) and tderiv(u,x) as du/dx. | |
183 | ||
184 | * Changed Big mode to format integ(1/x,x) as "dx/x" instead of "1/x dx". | |
185 | ||
186 | * Added "tty" output type for graphics commands. | |
187 | ||
188 | * Documented Calc's random number generation algorithm in the manual. | |
189 | ||
190 | * Fixed a bug involving having "(setq calc-timing t)" in .emacs. | |
191 | ||
192 | * Fixed a bug that incorrectly parsed "|x| - 1" in TeX mode. | |
193 | ||
194 | * Fixed bugs and made improvements in `a R' when widening the guess. | |
195 | ||
196 | * Fixed a bug that where `a S' didn't solve (x - a)^2 = (x - b)^2. | |
197 | ||
198 | * Fixed a bug that sometimes crashed `a P' on systems of equations. | |
199 | ||
200 | * Fixed a bug that prevented `b p' (calc-pack-bits) from working. | |
201 | ||
202 | * Fixed some bugs in which certain functions didn't get autoloaded. | |
203 | ||
204 | * Fixed a bug in which the date <1/1/13> was incorrectly parsed. | |
205 | ||
206 | * Fixed a bug which prevented `j D' from expanding (a+b)/c. | |
207 | ||
208 | * Fixed a bug in solver: bad inverses for sinh and cosh. | |
209 | ||
210 | * Fixed a bug in math-possible-signs that failed for x*0. | |
211 | ||
212 | * Fixed a bug where sqrt(-a) was rewritten sqrt(a)*i even if a<0. | |
213 | ||
214 | * Fixed a bug in line breaker when first "word" of line was too long. | |
215 | ||
216 | * Worked around a makeinfo bug that handled @end group/@group badly. | |
217 | ||
218 | \f | |
219 | Version 2.00 alpha 3: | |
220 | ||
221 | * Changed logic for locating component .elc files to be even smarter. | |
222 | ||
223 | * Changed "make install" to "make compile"; added different "make install". | |
224 | ||
225 | * Improved "make compile" to check file dates and compile only when needed. | |
226 | ||
227 | * Made output of "make compile" in batch mode more compact and readable. | |
228 | ||
229 | * Replaced "Quick Overview" in manual with "Demonstration of Calc". | |
230 | ||
231 | * Changed to use keymaps for dispatching M-# and h prefix keys. | |
232 | ||
233 | * Added TAGS target to the Calc Makefile. | |
234 | ||
235 | * Removed most doc strings from functions; new help commands are better. | |
236 | ||
237 | * Got rid of some crufty "fset" calls that were cluttering the code. | |
238 | ||
239 | * Split calc-grab-region into two functions, calc-grab-region/-rectangle. | |
240 | ||
241 | * Swapped positions of stack and trail in full-calc-keypad display. | |
242 | ||
243 | * Improved line-breaking algorithm for displaying long formulas. | |
244 | ||
245 | * Improved display of control characters in vectors shown as strings. | |
246 | ||
247 | * Changed `d o' to allow fraction format to specify desired denominator. | |
248 | ||
249 | * Changed `M-# y' to respect overwrite mode in target buffer. | |
250 | ||
251 | * Added `H' prefix to display-mode commands to suppress stack refresh. | |
252 | ||
253 | * Changed "calc-why" mechanism to display urgent messages automatically. | |
254 | ||
255 | * Handled taking derivatives of symbolic integrals and vice-versa. | |
256 | ||
257 | * Handled integrating vectors of formulas. | |
258 | ||
259 | * Incorporated Ewerlid's polynomial division and GCD functions into Calc. | |
260 | ||
261 | * Improved algebraic operations on "mod" forms, esp. polynomials. | |
262 | ||
263 | * Added some more financial functions (sln, syd, ddb). | |
264 | ||
265 | * Added nest, anest, fixp, and afixp (`H V R' and `H V U') functions. | |
266 | ||
267 | * Added `a .' (calc-remove-equal) command to take apart equations. | |
268 | ||
269 | * Generalized dfact to work for negative odd integers; added !! syntax. | |
270 | ||
271 | * Changed `k f' to factor 1, 0, and negative integers. | |
272 | ||
273 | * Changed `u M', etc., to accept +/- and [ .. ] forms as distributions. | |
274 | ||
275 | * Changed `g q' to remove *Gnuplot Commands/Trail* window if present. | |
276 | ||
277 | * Added support for Francois Pinard's "dumb terminal" driver for GNUPLOT. | |
278 | ||
279 | * Added ":: remember" feature for rewrite rules. | |
280 | ||
281 | * Changed rewrites to let pattern "a*b" match "x/2" with a=x, b=1/2. | |
282 | ||
283 | * Added ability to put function names like "simplify" in rewrite schedule. | |
284 | ||
285 | * Added "Rewrites Tutorial" to the manual. | |
286 | ||
287 | * Changed ` to bind RET as newline instead of finish if editing a vector. | |
288 | ||
289 | * Added some new exercises to the List Tutorial. | |
290 | ||
291 | * Changed `Z F', `V M', etc. not to remove stored vars from def arg list. | |
292 | ||
293 | * Added parsing for /1, 2, 3/ notation for Fortran mode vectors. | |
294 | ||
295 | * Added a "%%" syntax for comments in formulas being read. | |
296 | ||
297 | * Fixed a bug in which failing `h k' removed an existing Info window. | |
298 | ||
299 | * Fixed a bug in `j /' operating on subformulas like "a + b". | |
300 | ||
301 | * Fixed a bug in which "inf = inf" undesirably evaluated to 1. | |
302 | ||
303 | * Fixed a bug that simplified "0 = 1 + a + 2" to "0 = a". | |
304 | ||
305 | * Fixed a bug that failed for rewrite patterns like "fib(1 ||| 2)". | |
306 | ||
307 | * Fixed a bug that arose because rewrite programs are non-reentrant. | |
308 | ||
309 | \f | |
310 | Version 2.00 alpha 2: | |
311 | ||
312 | * Changed LFD terminating algebraic entry to push in no-simplify mode. | |
313 | ||
314 | * Changed so that `K -' interprets `-' as calc-minus, not neg prefix arg. | |
315 | ||
316 | * Improved `h c' command to understand all Calc key sequences. | |
317 | ||
318 | * Fixed problems with DistribRules, NegateRules, and FitRules. | |
319 | ||
320 | * Fixed several bad node pointers in the manual. | |
321 | ||
322 | * Fixed a bug in `h C-w' when used with makeinfo-formatted manuals. | |
323 | ||
324 | * Fixed a bug in sqrt(-1) when Polar and HMS modes are enabled. | |
325 | ||
326 | * Fixed/improved dscalar and deven functions; added dodd. | |
327 | ||
328 | * Fixed a bug in polynomial handling that also affected sum(sin(k),k,1,n). | |
329 | ||
330 | * Fixed various other glitches in the manual. | |
331 | ||
332 | \f | |
333 | Version 2.00 alpha 1: | |
334 | ||
335 | * Calc's tar file now creates a calc-(version) directory to unpack into. | |
336 | ||
337 | * Calc now comes with a Makefile; install with "make install". | |
338 | ||
339 | * Calc now comes already split into many files; installation is much simpler. | |
340 | ||
341 | * Changed base file name of the manual from "calc-info" to "calc.info". | |
342 | ||
343 | * Key binding for `M-# w' was documented but not implemented. | |
344 | ||
345 | * Bound M-# ' to be synonymous with `M-# f' (used to be `M-# q'). | |
346 | ||
347 | * Changed M-# M-# to use last interface of C or K; E no longer counts. | |
348 | ||
349 | * Changed `i' (and `M-# i') not to return to Top node unnecessarily. | |
350 | ||
351 | * Changed `h' to be a prefix key with various help commands. | |
352 | ||
353 | * Changed `s' to be a prefix key with various store and recall commands. | |
354 | ||
355 | * Keys `i', `r', and `l' are obsolete (moved to `h' and `s' prefixes). | |
356 | ||
357 | * Rearranged `K', `X', and `M-RET' keys; `K' is now calc-keep-args. | |
358 | ||
359 | * Changed quick-calc to display input formula as well as output if room. | |
360 | ||
361 | * Changed quick-calc to interact with the editing buffer and kill ring. | |
362 | ||
363 | * Created pack, unpack, unpackt function equivalents of `v p', `v u'. | |
364 | ||
365 | * Changed to expand (a/b)^x to a^x/b^x only if b > 0 (not if a > 0). | |
366 | ||
367 | * Changed math-possible-signs to understand sqrt function. | |
368 | ||
369 | * Changed Z [, rewrites to consider any provably non-zero value as true. | |
370 | ||
371 | * Changed normal language modes to accept ** as a synonym for ^. | |
372 | ||
373 | * Added "maple" language mode. | |
374 | ||
375 | * Changed, e.g., Mathematica "(2 + 3 I)^(1.23*10^20)" to include parens. | |
376 | ||
377 | * Generalized math-compose-big properties for all language modes. | |
378 | ||
379 | * Introduced "string" and other function for composing expressions. | |
380 | ||
381 | * Changed many recursive vector routines to use loops instead. | |
382 | ||
383 | * Added evalv, evalvn function equivalents to `=', `N'. | |
384 | ||
385 | * Changed "expr =>" not to evaluate at all if in no-simplify mode. | |
386 | ||
387 | * Redesigned user interface of `a F' (calc-curve-fit) command. | |
388 | ||
a1506d29 | 389 | * Added "phase" feature to the rewrite rule system. |
136211a9 EZ |
390 | |
391 | * Added "&&&", "|||", "!!!" to the rewrite rule system. | |
392 | ||
393 | * Introduced a new notation for rewrites: LHS := RHS :: COND. | |
394 | ||
395 | * Changed `a r' (but not `j r') to repeat 100 times by default. | |
396 | ||
397 | * Integrated EvalRules more cleanly into the default simplifications. | |
398 | ||
399 | * Added `H v l' [mdims] to measure the dimensions of a matrix. | |
400 | ||
401 | * Changed `u c' to interpret "/units" as "1/units". | |
402 | ||
403 | * Added `u a' to adjust unit prefix letters automatically. | |
404 | ||
405 | * Changed `u s' to enable scalar mode while simplifying. | |
406 | ||
407 | * Changed `c f' [pfloat] not to float integer powers or subscripts. | |
408 | ||
409 | * Added a three-argument form for the "hms" function. | |
410 | ||
411 | * Changed, e.g., sin(90) degrees to produce 1 instead of 1.0. | |
412 | ||
413 | * Changed symbolic mode to prefer sqrt(int): abs([1 2 3]) => sqrt(14). | |
414 | ||
415 | * Enhanced solver to handle, e.g., x + 1/x = a; exp(x) + exp(-x) = a. | |
416 | ||
417 | * Enhanced simplifier to handle, e.g., exp(a+2) / e^a => e^2. | |
418 | ||
419 | * Enhanced `a s' to simplify sqrt(x) - x^1:2 and exp(x) - e^x to 0. | |
420 | ||
421 | * Added -(a + b) to -a - b as a default simplification. | |
422 | ||
423 | * Added rules for differentiating sum() and prod() functions. | |
424 | ||
425 | * Added a few more energy units (due to Przemek Klosowski). | |
426 | ||
427 | * Added overflow/underflow checking for all floating-point arithmetic. | |
428 | ||
429 | * Extended error forms to work with complex numbers. | |
430 | ||
431 | * Generalized GCD to handle fractional arguments. | |
432 | ||
433 | * Changed graphics routines to evaluate "x" values, e.g., [-pi .. pi]. | |
434 | ||
435 | * Added `g q', like `g K' but without viewing the Gnuplot Trail. | |
436 | ||
437 | * Changed `g p' and `V M' to display better "Working..." messages. | |
438 | ||
439 | * Modified `M-# g' to be more robust about grabbing formulas. | |
440 | ||
441 | * Added `Y' prefix key reserved for user-written extensions. | |
442 | ||
443 | * Added calc-load-hook and calc-ext-load-hook. | |
444 | ||
445 | * Prevented calc-install from leaving large ~ files behind. | |
446 | ||
447 | * Changed @bullet to @bullet{} in manual to conform to texinfo spec. | |
448 | ||
449 | * Rearranged some chapters in the manual to be a bit more logical. | |
450 | ||
451 | * Added calc-split-summary command. | |
452 | ||
453 | * Fixed several bugs in embedded mode. | |
454 | ||
455 | * Fixed a bug in calc-vector-covariance that required a prefix arg. | |
456 | ||
457 | * Fixed a bug that prevented parsing "a=>" with no right-hand side. | |
458 | ||
459 | * Fixed a bug which allowed incorrectly dividing a vector by a vector. | |
460 | ||
461 | * Fixed a bug formatting sum(...)^2 in Big mode. | |
462 | ||
463 | * Fixed a bug that prevented Calc from deleting old graphics temp files. | |
464 | ||
465 | * Fixed some typos calling calc-inverse-func instead of calc-invert-func. | |
466 | ||
467 | * Fixed bugs in the derivatives of conj, deg, and rad; added re, im. | |
468 | ||
469 | * Fixed a bug where (r;theta) parsed as r exp(theta i) even in Deg mode. | |
470 | ||
471 | * Fixed a bug which gave wrong answer for exp of a polar complex number. | |
472 | ||
473 | * Fixed a bug in `Z F' that failed if formula used non-arg variables. | |
474 | ||
475 | * Fixed a bad pointer to Info node "Assignments in Embedded Mode". | |
476 | ||
477 | * Fixed several errors in the Calc Summary. | |
478 | ||
479 | \f | |
480 | Version 1.08 beta 1: | |
481 | ||
482 | * Calc's copyright has been assigned to FSF, for inclusion in Emacs 19! | |
483 | ||
484 | * Changed M-# to be a two-key sequence; use M-# M-# to start Calc now. | |
485 | ||
486 | * Rewrote and expanded the introductory chapter of the manual. | |
487 | ||
488 | * Added a key and function summary to the manual. | |
489 | ||
490 | * Changed the manual to take better advantage of TeX's math formatting. | |
491 | ||
492 | * Changed manual to be printable in @smallbook format. | |
493 | ||
494 | * Added "calc-embedded" mode. | |
495 | ||
496 | * Added "=>" [evalto] operator. | |
497 | ||
498 | * Added facilities for date and date/time arithmetic. | |
499 | ||
500 | * Added a set of financial functions (pv, fv, etc.). | |
501 | ||
502 | * Added infinite quantities inf, uinf, and nan (plus infinite intervals). | |
503 | ||
504 | * Added "EvalRules", "SimpRules", and "ExtSimpRules" variables. | |
505 | ||
506 | * Added sum and product commands `a +', `a -', `a *', `a T'. | |
507 | ||
508 | * Enhanced `a S' and `a P' to solve systems of equations. | |
509 | ||
510 | * Enhanced solver to handle eqns like sin(x) = cos(2 x), sqrt(x) + x = 1. | |
511 | ||
512 | * Added `a M' (calc-map-equation) command. | |
513 | ||
514 | * Added new statistical functions: mean, standard deviation, etc. | |
515 | ||
516 | * Added line, polynomial, and curve fitting commands (`a L' and `a F'). | |
517 | ||
518 | * Added support for composite units, e.g., "mi+ft+in". | |
519 | ||
520 | * Enhanced "Big" mode to format square roots, choose, and powers better. | |
521 | ||
522 | * Enhanced "Big" mode to display fractions in large notation. | |
523 | ||
524 | * Added several alternate formats for matrix display. | |
525 | ||
526 | * Changed TeX mode to write "(1 + x^2)" instead of "\left(1 + x^2\right)". | |
527 | ||
528 | * Added support for relational operators in TeX and FORTRAN modes. | |
529 | ||
530 | * Added recognition of accents like \dot, \tilde, \underline in TeX mode. | |
531 | ||
532 | * Added "eqn" language mode. | |
533 | ||
534 | * Added extra control over display justification with `d <', `d =', `d >'. | |
535 | ||
536 | * Added calc-left-label and calc-right-label (`d {', `d }'). | |
537 | ||
538 | * Added "nn%" syntax for algebraic formulas; equivalent to "nn * .01". | |
539 | ||
540 | * Added input syntaxes like a = b = c, a != b != c, a <= b < c. | |
541 | ||
542 | * Changed "_" to mean subscripts; old use of "_" in vars is now "#". | |
543 | ||
544 | * Introduced "matrix mode" and "scalar mode" (`m v'). | |
545 | ||
546 | * Introduced generic identity matrices (idn(1)). | |
547 | ||
548 | * Added a method for declaring variables to be real, integer, > 0, etc. | |
549 | ||
550 | * Added `Z S' command for editing stored value of a variable. | |
551 | ||
552 | * Added "subst" algebraic function equivalent to the `a b' command. | |
553 | ||
554 | * Added `a f' command, changed deriv/integ/solve-for to use it. | |
555 | ||
556 | * Improved `a s' to simplify (x + y) (y + x) to (x + y)^2. | |
557 | ||
558 | * Improved `a s' to simplify i^2 to -1. | |
559 | ||
560 | * Improved `a s' to simplify, e.g., sin(pi/3) in Symbolic mode. | |
561 | ||
562 | * Improved `a s' to simplify sqrt(8) to 2 sqrt(2), 1/sqrt(2) to sqrt(2)/2. | |
563 | ||
564 | * Moved sin(arccos(x)) from `a e' to `a s'; not unsafe after all! | |
565 | ||
566 | * Changed (x y)^z => x^z y^z to be a usually-unsafe simplification. | |
567 | ||
568 | * Added thorough documentation of `a s' and `a e' to the manual. | |
569 | ||
570 | * Improved `a c' to collect "f(a)" even if "a" also appears elsewhere. | |
571 | ||
572 | * Introduced lin, linnt, islin, islinnt functions for linearity testing. | |
573 | ||
574 | * Improved `a x' to use binomial theorem to give simpler answers. | |
575 | ||
576 | * Improved `j D' to distribute powers of sums: (a + b)^n. | |
577 | ||
578 | * Improved `j M' to merge products of powers (may need no-simplify mode). | |
579 | ||
580 | * Changed to use defvar for DistribRules etc. so `Z V' works with them. | |
581 | ||
582 | * Improved `j *' and `j /' to work properly in a few more cases. | |
583 | ||
584 | * Improved `V R' to use identity value when reducing empty vectors. | |
585 | ||
586 | * Improved `v p' and `v u' to support more complex packing operations. | |
587 | ||
588 | * Disabled automatic simplification of sqrt(2)/2 to 1/sqrt(2). | |
589 | ||
590 | * Bound SPC and RET to press, TAB to next-menu in *Calc Keypad* buffer. | |
591 | ||
592 | * Added C-u ' to do algebraic entry with language mode forced to normal. | |
593 | ||
594 | * Added "$1", "$2", etc. input notation for algebraic entry. | |
595 | ||
596 | * Changed unary operators like `n', `&' to treat neg prefix args like RET. | |
597 | ||
598 | * Changed ` (calc-edit) to show full precision regardless of float format. | |
599 | ||
600 | * Enhanced quick-calc to display integers in several formats. | |
601 | ||
602 | * Documented `g H' (calc-graph-hide) command (had been left from manual). | |
603 | ||
604 | * Enhanced floor/ceil/trunc/round in several ways. | |
605 | ||
606 | * Added rounde and roundu functions. | |
607 | ||
608 | * Changed `c 1' through `c 9' to change small floats to 0.0; added `c 0'. | |
609 | ||
610 | * Enhanced set operations to work on sets of intervals. | |
611 | ||
612 | * Fixed erf(0), utpn(x,x,y), and arccosh(-1) to work properly. | |
613 | ||
614 | * Changed complex arctan and arctanh to follow Steele 2nd edition. | |
615 | ||
616 | * Expanded "Branch Cuts" section of the manual with some useful tables. | |
617 | ||
618 | * Rearranged order of words in mode line to be a bit more logical. | |
619 | ||
620 | * Changed `m N' (num-simplify) mode to evaluate constant vectors, too. | |
621 | ||
622 | * Changed `a r'/`j r' to prompt twice for separate LHS/RHS if necessary. | |
623 | ||
624 | * Enhanced `let(v,x)' in rewrites by allowing arbitrary patterns for v. | |
625 | ||
626 | * Changed cursor positioning in second prompt for `a b' (calc-substitute). | |
627 | ||
628 | * Changed `y' to omit line numbers more consistently. | |
629 | ||
630 | * Changed `o' (calc-realign) to reset horizontal scrolling to zero, also. | |
631 | ||
632 | * Added "pred" mode for calc-eval. | |
633 | ||
634 | * Added "calc-report-bug" as an alias for "report-calc-bug". | |
635 | ||
636 | * Added `Z T' and "calc-pass-errors" to aid debugging Calc-related code. | |
637 | ||
638 | * Added "calc-load-everything" (`m X' or `M-# L') command. | |
639 | ||
640 | * Enhanced calc-install to pre-build units table, CommuteRules, etc. | |
641 | ||
642 | * Changed Calc to interact more gracefully with load-path. | |
643 | ||
644 | * Changed Lisp Variable Index in manual to include user variables, too. | |
645 | ||
646 | * Fixed a bug that prevented calc-install from working under VMS. | |
647 | ||
648 | * Fixed a bug that sometimes crashed rewrites dealing with subtractions. | |
649 | ||
650 | * Fixed a bug that prevented `a S' from solving "3 - x = 1 + x"! | |
651 | ||
652 | * Fixed a bug in solver that crashed for certain cubics and quartics. | |
653 | ||
654 | * Fixed a bug in calc-simplify that crashed for equations and ineqs. | |
655 | ||
656 | * Fixed a bug which placed the "[" oddly in `d B' + `v /' mode. | |
657 | ||
658 | * Fixed a bug where finishing calc-edit improperly obeyed language mode. | |
659 | ||
660 | * Fixed a bug formatting (-1)^n in Big mode after selection commands. | |
661 | ||
662 | * Fixed a bug that got ">=" and "<=" backwards in rewrite conditions. | |
663 | ||
664 | * Fixed a bug that broke the `"x"' key in calc-keypad mode. | |
665 | ||
666 | * Fixed a bug in which `MAP$' in calc-keypad didn't display "Working...". | |
667 | ||
668 | * Fixed a bug where matrix division gave bad result for singular matrix. | |
669 | ||
670 | * Fixed a bug which closed Calc window if calc-grab-region got an error. | |
671 | ||
672 | * Fixed a bug where `a s' failed on formulas containing dimension errors. | |
673 | ||
674 | * Fixed a bug that caused `m F' to hang. | |
675 | ||
676 | * Fixed a bug in complex arithmetic that caused problems with solver. | |
677 | ||
678 | * Fixed a bug which raised intervals to interval powers incorrectly. | |
679 | ||
680 | * Fixed a bug in utpp/ltpp (order of arguments did not match the manual). | |
681 | ||
682 | * Fixed a bug in which `t y' rounded yanked data with old precision. | |
683 | ||
684 | * Fixed a bug in which "in(3, [3 .. 3))" returned true. | |
685 | ||
686 | * Fixed a bug which simplified abs(abs(x)) incorrectly. | |
687 | ||
688 | * Fixed a bug in which (a^2)^1:3 was unsafely simplified to a^2:3. | |
689 | ||
690 | * Fixed a bug in rewrite system which missed pattern "2 sin(x) cos(x)". | |
691 | ||
692 | * Fixed a bug in rewrite system which missed pattern "a - a cos(x)^2". | |
693 | ||
694 | * Fixed obsolete trail tags gsmp, gneg, ginv to jsmp, jneg, jinv. | |
695 | ||
696 | * Fixed some errors and made improvements in units table [Ulrich Mueller]. | |
697 | ||
698 | \f | |
699 | Version 1.07: | |
700 | ||
701 | * Added `m F' (calc-settings-file-name) command. | |
702 | ||
703 | * Added calc-autoload-directory variable. | |
704 | ||
705 | * Extended Z ` to accept a prefix argument. | |
706 | ||
707 | * Added keystrokes (v h, v k) for head, tail, cons. | |
708 | ||
709 | * Extended `v e' to accept a vector as the filler. | |
710 | ||
711 | * Changed `V M', `V R' to accept mapping-mode keys in uppercase, too. | |
712 | ||
713 | * Changed V M ' etc. to accept $, $$, ... as argument indicators. | |
714 | ||
715 | * Changed `t y' to accept a prefix argument. | |
716 | ||
717 | * Put in a cleaner and safer random number generator for `k r' et al. | |
718 | ||
719 | * Fixed a bug which completely broke `a r' command! | |
720 | ||
721 | * Fixed "0 * matrix" to generate a zero matrix instead of 0. | |
722 | ||
723 | * Fixed a bug in `a R' which sometimes caused it to crash. | |
724 | ||
725 | * Fixed a fatal typo in the TeX version of the manual. | |
726 | ||
727 | * Fixed a bug that prevented C-k, C-w, M-w from working in Trail buffer. | |
728 | ||
729 | * Fixed another bug in `Z P' command. | |
730 | ||
731 | * Fixed a bug in `u s' which incorrectly simplified subtractions. | |
732 | ||
733 | * Fixed an argument-name aliasing bug evaluating lambda( ) formulas. | |
734 | ||
735 | * Fixed overfull hboxes in the manual. | |
736 | ||
737 | * Fixed various other bugs in the manual. | |
738 | ||
739 | \f | |
740 | Version 1.06: | |
741 | ||
742 | * Added "calc-keypad" mode for X window system users (try it!). | |
743 | ||
744 | * Improved "calc-eval" for calling/operating Calc from user-written Lisp. | |
745 | ||
746 | * Moved vector accumulate command to `V U' (old `H V R' still supported). | |
747 | ||
748 | * Added right-to-left reductions: `I V R' and `I V U'. | |
749 | ||
750 | * Added set operations on vectors: intersect, union, diff, xor. | |
751 | ||
752 | * Added `I v s' to remove a subvector from a vector. | |
753 | ||
754 | * Introduced `H |' to append two vectors with no magical special cases. | |
755 | ||
756 | * Introduced rhead, rtail, and rcons for isolating last vector element. | |
757 | ||
758 | * Changed `g p' to keep temp files around until data actually change. | |
759 | ||
760 | * Improved `a S' to solve many higher-order polynomial equations. | |
761 | ||
762 | * Added `a P' to produce a vector of all solutions to an equation. | |
763 | ||
764 | * Enhanced `a v' and `j v' to allow top-level-only evaluation. | |
765 | ||
766 | * Changed `j DEL' to delete a side of an eqn or ineq, leaving other side. | |
767 | ||
768 | * Fixed binding for keys `j 1' through `j 9'. | |
769 | ||
770 | * Introduced "let" marker in rewrite rules. | |
771 | ||
772 | * Enhanced the "sign" function to provide a two-argument version. | |
773 | ||
774 | * Changed "max-specpdl-size exceeded" error message to be user-friendly. | |
775 | ||
776 | * Put "<Aborted>" in the trail in above case and when user presses C-g. | |
777 | ||
778 | * Changed TeX mode to generate \ldots instead of \dots, recognize both. | |
779 | ||
780 | * Changed "sin(0)" etc. (for integer 0) to generate "0" instead of "0.". | |
781 | ||
782 | * Enhanced Programming Tutorial exercise 2. | |
783 | ||
784 | * Fixed an error in the answer to Types Tutorial exercise 3. | |
785 | ||
786 | * Fixed several bugs relating to head, tail, and cons functions. | |
787 | ||
788 | * Fixed some other minor typos in the manual. | |
789 | ||
790 | * Fixed several bugs in `Z P' (calc-user-define-permanent). | |
791 | ||
792 | * Fixed several bugs that broke the `g P' command. | |
793 | ||
794 | \f | |
795 | Version 1.05: | |
796 | ||
797 | * Created a calc-install command to ease installation. | |
798 | ||
799 | * Added lots of exercises to the Tutorial section of the manual. | |
800 | ||
801 | * Added ability to select and operate on sub-formulas. | |
802 | ||
803 | * Substantially improved the algebraic rewrite-rule system. | |
804 | ||
805 | * Added a set of graphing commands that use GNUPLOT. | |
806 | ||
807 | * Added a command (`a R') for finding numerical roots to equations. | |
808 | ||
809 | * Added several new math functions, such as erf and Bessel functions. | |
810 | ||
811 | * Added key bindings for miscellaneous commands using the "f" prefix key. | |
812 | ||
813 | * Added lots of new vector operations, many of them in the spirit of APL. | |
814 | ||
815 | * Added more control over vector display, including an abbreviated mode. | |
816 | ||
817 | * Improved keyboard macro editing; added read-kbd-macro to macedit.el. | |
818 | ||
819 | * Introduced the `m S' (calc-shift-prefix) command. | |
820 | ||
821 | * Enhanced the calc-edit command in several ways. | |
822 | ||
823 | * Made it possible to hit ` (calc-edit) during numeric/algebraic entry. | |
824 | ||
825 | * Enhanced the calc-solve-for command to handle inequalities. | |
826 | ||
827 | * Enhanced calc-simplify to handle equations and inequalities. | |
828 | ||
829 | * Taught log10 and log to look for exact integer or rational results. | |
830 | ||
831 | * Added ability to take Nth roots directly. | |
832 | ||
833 | * Added "increment" and "decrement" commands for integers and floats. | |
834 | ||
835 | * Added "full-help" command, changed "h" key to invoke it. | |
836 | ||
837 | * Added special help for Inverse and Hyperbolic prefixes. | |
838 | ||
839 | * Added an optional prefix argument to `o' (calc-realign). | |
840 | ||
841 | * Changed `t s' and `t r' to use RET as the search exit key. | |
842 | ||
843 | * Made handling of operator keys for V M, V R, etc. more regular. | |
844 | ||
845 | * Improved TeX mode; added support for \matrix format. | |
846 | ||
847 | * Added a variant of `m a' mode that only affects ( and [ keys. | |
848 | ||
849 | * Fixed "Mismatch" message for algebraic entry of semi-open intervals. | |
850 | ||
851 | * Trimmed fat from calc.el to speed loading, moved more to calc-ext.el. | |
852 | ||
853 | * Fixed a bug in which minibuffer entry rounded to out-of-date precision. | |
854 | ||
855 | * Fixed a bug which crashed Calc 1.04 under Epoch. | |
856 | ||
857 | * Fixed a bug which messed up Calc Trail's mode line, among other things. | |
858 | ||
859 | * Fixed a bug which caused trail ">" to show only when in Trail buffer. | |
860 | ||
861 | * Fixed a bug in which "calc" called "calc-grab-region" with too few args. | |
862 | ||
863 | * Fixed bugs in both implementation and documentation of calc-perm. | |
864 | ||
865 | * Fixed a bug in which calc-simplify-extended always used radians. | |
866 | ||
867 | * Fixed a bug where calc-comma failed to override "polar" mode. | |
868 | ||
869 | * Fixed a bug doing mixed arithmetic on rectangular+polar complex numbers. | |
870 | ||
871 | * Fixed several bugs in transcendental functions with complex arguments. | |
872 | ||
873 | * Fixed a bug in which `a s' simplified "x / .5" to ".5 x". | |
874 | ||
875 | * Fixed numerous other bugs in various parts of Calc. | |
876 | ||
877 | * Completed the "Hooks" section of the "Internals" chapter of the manual. | |
878 | ||
879 | \f | |
880 | Version 1.04: | |
881 | ||
882 | * Included a copy of revision history (from README) in calc.el. | |
883 | ||
884 | * Added the "calc-split" feature to split calc-ext.el into smaller bits. | |
885 | ||
886 | * Changed calc-unpack to unpack floats and fractions, too. | |
887 | ||
888 | * Added "mant", "xpon", and "scf" functions for decomposing floats. | |
889 | ||
890 | * Fixed a bug in the "y" command with positive prefix arguments. | |
891 | ||
892 | * Rearranged binary shift/rotate command keys to be a bit more convenient. | |
893 | ||
894 | * Fixed a bug in which simplifying "(0/0) * 2" crashed with a Lisp error. | |
895 | ||
896 | * Made `H F' [ffloor] and friends faster for very large arguments. | |
897 | ||
898 | * Made calc-define-del more robust. | |
899 | ||
900 | * Handled pasting of data into the Calculator using the mouse under X. | |
901 | ||
902 | * Made overlay-arrow variables buffer-local to avoid interference. | |
903 | ||
904 | * Fixed a problem in which Calc Trail buffer got stuck after a C-x C-w. | |
905 | ||
906 | \f | |
907 | Version 1.03: | |
908 | ||
909 | * Changed math-choose to compute n-choose-m faster when m is large. | |
910 | ||
911 | * Fixed some problems with TeX mode. | |
912 | ||
913 | * Fixed a bug that prevented `b s' from working without a prefix argument. | |
914 | ||
915 | * Added "calc-eval" function. | |
916 | ||
917 | * Improved calc-grab-region. | |
918 | ||
919 | \f | |
920 | Version 1.02: | |
921 | ||
922 | * Fixed a bug in Tutorial: telephone pole height/distance were switched! | |
923 | ||
924 | * Fixed a few other things in the manual. | |
925 | ||
926 | * Added "full-calc" command. | |
927 | ||
928 | * Added "calc-insert-variables" (`Z I') command. | |
929 | ||
930 | * Quick Calc now works even if you are already in the minibuffer. | |
931 | ||
932 | * Fixed a bug in math-mul-bignum-digit which affected math-and, etc. | |
933 | ||
934 | * Definition of "Hectares" was wrong in units table. | |
935 | ||
936 | * Fixed a bug in calc-execute-kbd-macro concerning undo and refresh. | |
937 | ||
938 | * Bound "calc-undo" to `C-x u' as well as `C-_' and `U'. | |
939 | \f | |
940 | Version 1.01: | |
941 | ||
942 | * Added a tutorial section to the manual. | |
943 | ||
944 | * Next and Prev for node Strings in the manual were reversed; fixed. | |
945 | ||
946 | * Changed "'bignum" in calc-isqrt-bignum-iter to "'bigpos". | |
947 | ||
948 | * Fixed a bug that prevented "$" from working during algebraic entry. | |
949 | ||
950 | * Fixed a bug caused by an X (last-X) command following a K (macro) cmd. | |
951 | ||
952 | * Fixed a bug in which K command incorrectly formatted stack in Big mode. | |
953 | ||
954 | * Added space between unary operators and non-flat compositions. | |
955 | (Otherwise, "-(a/b)" in Big mode blended the minus sign into the rule!) | |
956 | ||
957 | * Fixed formatting of (-1)^n in Big mode. | |
958 | ||
959 | * Fixed some problems relating to "not" operator in Pascal language mode. | |
960 | ||
961 | * Fixed several bugs relating to V M ' and V M $ sequences. | |
962 | ||
963 | * Fixed matrix-vector multiplication to produce a vector. | |
964 | ||
965 | * Introduced Z ` ... Z ' commands; renamed old Z ' to Z #. | |
966 | ||
967 | * Fixed various other bugs. | |
968 | ||
969 | * Added calc-settings-file variable suggested by C. Witty. | |
970 | ||
971 | \f | |
972 | Version 1.00: | |
973 | ||
974 | * First official release of Calc. | |
975 | ||
976 | * If you used the Beta test version (0.01), you will find that this | |
977 | version of Calc is over 50% larger than the original release. | |
978 | General areas of improvement include much better algebra features; | |
979 | operations on units; language modes; simplification modes; interval | |
980 | arithmetic; vector mapping and reduction. Other new commands include | |
981 | calc-fraction and calc-grab-region. The program has been split into | |
982 | two parts for faster loading, and the manual is more complete. | |
983 | ||
2f969cd4 GM |
984 | \f |
985 | This file is part of GNU Emacs. | |
986 | ||
662c9c64 | 987 | GNU Emacs is free software: you can redistribute it and/or modify |
2f969cd4 | 988 | it under the terms of the GNU General Public License as published by |
662c9c64 GM |
989 | the Free Software Foundation, either version 3 of the License, or |
990 | (at your option) any later version. | |
2f969cd4 GM |
991 | |
992 | GNU Emacs is distributed in the hope that it will be useful, | |
993 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
994 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
995 | GNU General Public License for more details. | |
996 | ||
997 | You should have received a copy of the GNU General Public License | |
662c9c64 | 998 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |