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1 | ;;; calc-misc.el --- miscellaenous functions for Calc |
2 | ||
f8fc5256 | 3 | ;; Copyright (C) 1990, 1991, 1992, 1993, 2001, 2005 Free Software Foundation, Inc. |
dac12d80 CW |
4 | |
5 | ;; Author: David Gillespie <daveg@synaptics.com> | |
276d2865 | 6 | ;; Maintainer: Jay Belanger <belanger@truman.edu> |
136211a9 EZ |
7 | |
8 | ;; This file is part of GNU Emacs. | |
9 | ||
10 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
11 | ;; but WITHOUT ANY WARRANTY. No author or distributor | |
12 | ;; accepts responsibility to anyone for the consequences of using it | |
13 | ;; or for whether it serves any particular purpose or works at all, | |
14 | ;; unless he says so in writing. Refer to the GNU Emacs General Public | |
15 | ;; License for full details. | |
16 | ||
17 | ;; Everyone is granted permission to copy, modify and redistribute | |
18 | ;; GNU Emacs, but only under the conditions described in the | |
19 | ;; GNU Emacs General Public License. A copy of this license is | |
20 | ;; supposed to have been given to you along with GNU Emacs so you | |
21 | ;; can know your rights and responsibilities. It should be in a | |
22 | ;; file named COPYING. Among other things, the copyright notice | |
23 | ;; and this notice must be preserved on all copies. | |
24 | ||
dac12d80 | 25 | ;;; Commentary: |
136211a9 | 26 | |
dac12d80 | 27 | ;;; Code: |
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28 | |
29 | ;; This file is autoloaded from calc.el. | |
136211a9 | 30 | |
877dc4f5 | 31 | (require 'calc) |
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32 | (require 'calc-macs) |
33 | ||
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34 | (defun calc-dispatch-help (arg) |
35 | "M-# is a prefix key; follow it with one of these letters: | |
36 | ||
37 | For turning Calc on and off: | |
38 | C calc. Start the Calculator in a window at the bottom of the screen. | |
39 | O calc-other-window. Start the Calculator but don't select its window. | |
40 | B calc-big-or-small. Control whether to use the full Emacs screen for Calc. | |
41 | Q quick-calc. Use the Calculator in the minibuffer. | |
42 | K calc-keypad. Start the Calculator in keypad mode (X window system only). | |
43 | E calc-embedded. Use the Calculator on a formula in this editing buffer. | |
44 | J calc-embedded-select. Like E, but select appropriate half of => or :=. | |
45 | W calc-embedded-word. Like E, but activate a single word, i.e., a number. | |
46 | Z calc-user-invocation. Invoke Calc in the way you defined with `Z I' cmd. | |
47 | X calc-quit. Turn Calc off. | |
48 | ||
49 | For moving data into and out of Calc: | |
50 | G calc-grab-region. Grab the region defined by mark and point into Calc. | |
51 | R calc-grab-rectangle. Grab the rectangle defined by mark, point into Calc. | |
52 | : calc-grab-sum-down. Grab a rectangle and sum the columns. | |
53 | _ calc-grab-sum-across. Grab a rectangle and sum the rows. | |
54 | Y calc-copy-to-buffer. Copy a value from the stack into the editing buffer. | |
55 | ||
56 | For use with Embedded mode: | |
57 | A calc-embedded-activate. Find and activate all :='s and =>'s in buffer. | |
58 | D calc-embedded-duplicate. Make a copy of this formula and select it. | |
59 | F calc-embedded-new-formula. Insert a new formula at current point. | |
60 | N calc-embedded-next. Advance cursor to next known formula in buffer. | |
61 | P calc-embedded-previous. Advance cursor to previous known formula. | |
62 | U calc-embedded-update-formula. Re-evaluate formula at point. | |
63 | ` calc-embedded-edit. Use calc-edit to edit formula at point. | |
64 | ||
65 | Documentation: | |
66 | I calc-info. Read the Calculator manual in the Emacs Info system. | |
67 | T calc-tutorial. Run the Calculator Tutorial using the Emacs Info system. | |
68 | S calc-summary. Read the Summary from the Calculator manual in Info. | |
69 | ||
70 | Miscellaneous: | |
71 | L calc-load-everything. Load all parts of the Calculator into memory. | |
72 | M read-kbd-macro. Read a region of keystroke names as a keyboard macro. | |
73 | 0 (zero) calc-reset. Reset Calc stack and modes to default state. | |
74 | ||
75 | Press twice (`M-# M-#' or `M-# #') to turn Calc on or off using the same | |
76 | Calc user interface as before (either M-# C or M-# K; initially M-# C)." | |
77 | (interactive "P") | |
78 | (calc-check-defines) | |
79 | (if calc-dispatch-help | |
80 | (progn | |
81 | (save-window-excursion | |
82 | (describe-function 'calc-dispatch-help) | |
83 | (let ((win (get-buffer-window "*Help*"))) | |
84 | (if win | |
85 | (let (key) | |
86 | (select-window win) | |
87 | (while (progn | |
88 | (message "Calc options: Calc, Keypad, ... %s" | |
89 | "press SPC, DEL to scroll, C-g to cancel") | |
90 | (memq (car (setq key (calc-read-key t))) | |
91 | '(? ?\C-h ?\C-? ?\C-v ?\M-v))) | |
92 | (condition-case err | |
93 | (if (memq (car key) '(? ?\C-v)) | |
94 | (scroll-up) | |
95 | (scroll-down)) | |
96 | (error (beep)))) | |
97 | (calc-unread-command (cdr key)))))) | |
98 | (calc-do-dispatch nil)) | |
99 | (let ((calc-dispatch-help t)) | |
60e4c5a7 | 100 | (calc-do-dispatch arg)))) |
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101 | |
102 | ||
103 | (defun calc-big-or-small (arg) | |
104 | "Toggle Calc between full-screen and regular mode." | |
105 | (interactive "P") | |
106 | (let ((cwin (get-buffer-window "*Calculator*")) | |
107 | (twin (get-buffer-window "*Calc Trail*")) | |
108 | (kwin (get-buffer-window "*Calc Keypad*"))) | |
109 | (if cwin | |
110 | (setq calc-full-mode | |
111 | (if kwin | |
8f66f479 EZ |
112 | (and twin (eq (window-width twin) (frame-width))) |
113 | (eq (window-height cwin) (1- (frame-height)))))) | |
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114 | (setq calc-full-mode (if arg |
115 | (> (prefix-numeric-value arg) 0) | |
116 | (not calc-full-mode))) | |
117 | (if kwin | |
118 | (progn | |
119 | (calc-quit) | |
120 | (calc-do-keypad calc-full-mode nil)) | |
121 | (if cwin | |
122 | (progn | |
123 | (calc-quit) | |
124 | (calc nil calc-full-mode nil)))) | |
125 | (message (if calc-full-mode | |
dac12d80 CW |
126 | "Now using full screen for Calc" |
127 | "Now using partial screen for Calc")))) | |
136211a9 | 128 | |
1f5a0f5d | 129 | (defun calc-other-window (&optional interactive) |
136211a9 | 130 | "Invoke the Calculator in another window." |
1f5a0f5d | 131 | (interactive "p") |
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132 | (if (memq major-mode '(calc-mode calc-trail-mode)) |
133 | (progn | |
134 | (other-window 1) | |
135 | (if (memq major-mode '(calc-mode calc-trail-mode)) | |
136 | (other-window 1))) | |
137 | (if (get-buffer-window "*Calculator*") | |
138 | (calc-quit) | |
139 | (let ((win (selected-window))) | |
1f5a0f5d | 140 | (calc nil win interactive))))) |
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141 | |
142 | (defun another-calc () | |
143 | "Create another, independent Calculator buffer." | |
144 | (interactive) | |
145 | (if (eq major-mode 'calc-mode) | |
146 | (mapcar (function | |
147 | (lambda (v) | |
148 | (set-default v (symbol-value v)))) calc-local-var-list)) | |
149 | (set-buffer (generate-new-buffer "*Calculator*")) | |
150 | (pop-to-buffer (current-buffer)) | |
60e4c5a7 | 151 | (calc-mode)) |
136211a9 | 152 | |
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153 | (defun calc-info () |
154 | "Run the Emacs Info system on the Calculator documentation." | |
155 | (interactive) | |
136211a9 | 156 | (select-window (get-largest-window)) |
b23d58ff | 157 | (info "Calc")) |
136211a9 | 158 | |
65ce291b JB |
159 | (defun calc-info-goto-node (node) |
160 | "Go to a node in the Calculator info documentation." | |
161 | (interactive) | |
162 | (select-window (get-largest-window)) | |
163 | (Info-goto-node (concat "(Calc)" node))) | |
164 | ||
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165 | (defun calc-tutorial () |
166 | "Run the Emacs Info system on the Calculator Tutorial." | |
167 | (interactive) | |
168 | (if (get-buffer-window "*Calculator*") | |
169 | (calc-quit)) | |
65ce291b | 170 | (calc-info-goto-node "Interactive Tutorial") |
136211a9 | 171 | (calc-other-window) |
60e4c5a7 | 172 | (message "Welcome to the Calc Tutorial!")) |
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173 | |
174 | (defun calc-info-summary () | |
175 | "Run the Emacs Info system on the Calculator Summary." | |
176 | (interactive) | |
65ce291b | 177 | (calc-info-goto-node "Summary")) |
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178 | |
179 | (defun calc-help () | |
180 | (interactive) | |
181 | (let ((msgs (append | |
182 | '("Press `h' for complete help; press `?' repeatedly for a summary" | |
183 | "Letter keys: Negate; Precision; Yank; Why; Xtended cmd; Quit" | |
184 | "Letter keys: SHIFT + Undo, reDo; Keep-args; Inverse, Hyperbolic" | |
185 | "Letter keys: SHIFT + sQrt; Sin, Cos, Tan; Exp, Ln, logB" | |
186 | "Letter keys: SHIFT + Floor, Round; Abs, conJ, arG; Pi" | |
187 | "Letter keys: SHIFT + Num-eval; More-recn; eXec-kbd-macro" | |
188 | "Other keys: +, -, *, /, ^, \\ (int div), : (frac div)" | |
189 | "Other keys: & (1/x), | (concat), % (modulo), ! (factorial)" | |
190 | "Other keys: ' (alg-entry), = (eval), ` (edit); M-RET (last-args)" | |
191 | "Other keys: SPC/RET (enter/dup), LFD (over); < > (scroll horiz)" | |
192 | "Other keys: DEL (drop), M-DEL (drop-above); { } (scroll vert)" | |
193 | "Other keys: TAB (swap/roll-dn), M-TAB (roll-up)" | |
194 | "Other keys: [ , ; ] (vector), ( , ) (complex), ( ; ) (polar)" | |
195 | "Prefix keys: Algebra, Binary/business, Convert, Display" | |
196 | "Prefix keys: Functions, Graphics, Help, J (select)" | |
197 | "Prefix keys: Kombinatorics/statistics, Modes, Store/recall" | |
198 | "Prefix keys: Trail/time, Units/statistics, Vector/matrix" | |
199 | "Prefix keys: Z (user), SHIFT + Z (define)" | |
200 | "Prefix keys: prefix + ? gives further help for that prefix") | |
201 | (list (format | |
202 | " Calc %s by Dave Gillespie, daveg@synaptics.com" | |
203 | calc-version))))) | |
204 | (if calc-full-help-flag | |
205 | msgs | |
206 | (if (or calc-inverse-flag calc-hyperbolic-flag) | |
207 | (if calc-inverse-flag | |
208 | (if calc-hyperbolic-flag | |
209 | (calc-inv-hyp-prefix-help) | |
210 | (calc-inverse-prefix-help)) | |
211 | (calc-hyperbolic-prefix-help)) | |
212 | (setq calc-help-phase | |
213 | (if (eq this-command last-command) | |
214 | (% (1+ calc-help-phase) (1+ (length msgs))) | |
215 | 0)) | |
216 | (let ((msg (nth calc-help-phase msgs))) | |
217 | (message "%s" (if msg | |
218 | (concat msg ":" | |
219 | (make-string (- (apply 'max | |
220 | (mapcar 'length | |
221 | msgs)) | |
222 | (length msg)) 32) | |
223 | " [?=MORE]") | |
60e4c5a7 | 224 | ""))))))) |
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225 | |
226 | ||
227 | ||
228 | ||
229 | ;;;; Stack and buffer management. | |
230 | ||
f58af899 JB |
231 | ;; The variable calc-last-why-command is set in calc-do-handly-whys |
232 | ;; and used in calc-why (in calc-stuff.el). | |
233 | (defvar calc-last-why-command) | |
136211a9 EZ |
234 | |
235 | (defun calc-do-handle-whys () | |
236 | (setq calc-why (sort calc-next-why | |
237 | (function | |
238 | (lambda (x y) | |
239 | (and (eq (car x) '*) (not (eq (car y) '*)))))) | |
240 | calc-next-why nil) | |
241 | (if (and calc-why (or (eq calc-auto-why t) | |
242 | (and (eq (car (car calc-why)) '*) | |
243 | calc-auto-why))) | |
244 | (progn | |
c6d32405 | 245 | (require 'calc-ext) |
136211a9 EZ |
246 | (calc-explain-why (car calc-why) |
247 | (if (eq calc-auto-why t) | |
248 | (cdr calc-why) | |
249 | (if calc-auto-why | |
250 | (eq (car (nth 1 calc-why)) '*)))) | |
251 | (setq calc-last-why-command this-command) | |
60e4c5a7 | 252 | (calc-clear-command-flag 'clear-message)))) |
136211a9 EZ |
253 | |
254 | (defun calc-record-why (&rest stuff) | |
255 | (if (eq (car stuff) 'quiet) | |
256 | (setq stuff (cdr stuff)) | |
257 | (if (and (symbolp (car stuff)) | |
258 | (cdr stuff) | |
259 | (or (Math-objectp (nth 1 stuff)) | |
260 | (and (Math-vectorp (nth 1 stuff)) | |
261 | (math-constp (nth 1 stuff))) | |
262 | (math-infinitep (nth 1 stuff)))) | |
263 | (setq stuff (cons '* stuff)) | |
264 | (if (and (stringp (car stuff)) | |
265 | (string-match "\\`\\*" (car stuff))) | |
266 | (setq stuff (cons '* (cons (substring (car stuff) 1) | |
267 | (cdr stuff))))))) | |
268 | (setq calc-next-why (cons stuff calc-next-why)) | |
60e4c5a7 | 269 | nil) |
136211a9 EZ |
270 | |
271 | ;;; True if A is a constant or vector of constants. [P x] [Public] | |
272 | (defun math-constp (a) | |
273 | (or (Math-scalarp a) | |
274 | (and (memq (car a) '(sdev intv mod vec)) | |
275 | (progn | |
276 | (while (and (setq a (cdr a)) | |
277 | (or (Math-scalarp (car a)) ; optimization | |
278 | (math-constp (car a))))) | |
60e4c5a7 | 279 | (null a))))) |
136211a9 EZ |
280 | |
281 | ||
282 | (defun calc-roll-down-stack (n &optional m) | |
283 | (if (< n 0) | |
284 | (calc-roll-up-stack (- n) m) | |
285 | (if (or (= n 0) (> n (calc-stack-size))) (setq n (calc-stack-size))) | |
286 | (or m (setq m 1)) | |
287 | (and (> n 1) | |
288 | (< m n) | |
289 | (if (and calc-any-selections | |
290 | (not calc-use-selections)) | |
291 | (calc-roll-down-with-selections n m) | |
292 | (calc-pop-push-list n | |
293 | (append (calc-top-list m 1) | |
60e4c5a7 | 294 | (calc-top-list (- n m) (1+ m)))))))) |
136211a9 EZ |
295 | |
296 | (defun calc-roll-up-stack (n &optional m) | |
297 | (if (< n 0) | |
298 | (calc-roll-down-stack (- n) m) | |
299 | (if (or (= n 0) (> n (calc-stack-size))) (setq n (calc-stack-size))) | |
300 | (or m (setq m 1)) | |
301 | (and (> n 1) | |
302 | (< m n) | |
303 | (if (and calc-any-selections | |
304 | (not calc-use-selections)) | |
305 | (calc-roll-up-with-selections n m) | |
306 | (calc-pop-push-list n | |
307 | (append (calc-top-list (- n m) 1) | |
60e4c5a7 | 308 | (calc-top-list m (- n m -1)))))))) |
136211a9 EZ |
309 | |
310 | ||
311 | (defun calc-do-refresh () | |
312 | (if calc-hyperbolic-flag | |
313 | (progn | |
314 | (setq calc-display-dirty t) | |
315 | nil) | |
316 | (calc-refresh) | |
60e4c5a7 | 317 | t)) |
136211a9 EZ |
318 | |
319 | ||
320 | (defun calc-record-list (vals &optional prefix) | |
321 | (while vals | |
322 | (or (eq (car vals) 'top-of-stack) | |
323 | (progn | |
324 | (calc-record (car vals) prefix) | |
325 | (setq prefix "..."))) | |
60e4c5a7 | 326 | (setq vals (cdr vals)))) |
136211a9 EZ |
327 | |
328 | ||
329 | (defun calc-last-args-stub (arg) | |
330 | (interactive "p") | |
c6d32405 | 331 | (require 'calc-ext) |
60e4c5a7 | 332 | (calc-last-args arg)) |
136211a9 EZ |
333 | |
334 | ||
335 | (defun calc-power (arg) | |
336 | (interactive "P") | |
337 | (calc-slow-wrapper | |
c6d32405 | 338 | (if (and (featurep 'calc-ext) |
136211a9 EZ |
339 | (calc-is-inverse)) |
340 | (calc-binary-op "root" 'calcFunc-nroot arg nil nil) | |
60e4c5a7 | 341 | (calc-binary-op "^" 'calcFunc-pow arg nil nil '^)))) |
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342 | |
343 | (defun calc-mod (arg) | |
344 | (interactive "P") | |
345 | (calc-slow-wrapper | |
60e4c5a7 | 346 | (calc-binary-op "%" 'calcFunc-mod arg nil nil '%))) |
136211a9 EZ |
347 | |
348 | (defun calc-inv (arg) | |
349 | (interactive "P") | |
350 | (calc-slow-wrapper | |
60e4c5a7 | 351 | (calc-unary-op "inv" 'calcFunc-inv arg))) |
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352 | |
353 | (defun calc-percent () | |
354 | (interactive) | |
355 | (calc-slow-wrapper | |
356 | (calc-pop-push-record-list | |
60e4c5a7 | 357 | 1 "%" (list (list 'calcFunc-percent (calc-top-n 1)))))) |
136211a9 EZ |
358 | |
359 | ||
360 | (defun calc-over (n) | |
361 | (interactive "P") | |
362 | (if n | |
363 | (calc-enter (- (prefix-numeric-value n))) | |
60e4c5a7 | 364 | (calc-enter -2))) |
136211a9 EZ |
365 | |
366 | ||
367 | (defun calc-pop-above (n) | |
368 | (interactive "P") | |
369 | (if n | |
370 | (calc-pop (- (prefix-numeric-value n))) | |
60e4c5a7 | 371 | (calc-pop -2))) |
136211a9 EZ |
372 | |
373 | (defun calc-roll-down (n) | |
374 | (interactive "P") | |
375 | (calc-wrapper | |
376 | (let ((nn (prefix-numeric-value n))) | |
377 | (cond ((null n) | |
378 | (calc-roll-down-stack 2)) | |
379 | ((> nn 0) | |
380 | (calc-roll-down-stack nn)) | |
381 | ((= nn 0) | |
382 | (calc-pop-push-list (calc-stack-size) | |
383 | (reverse | |
384 | (calc-top-list (calc-stack-size))))) | |
385 | (t | |
60e4c5a7 | 386 | (calc-roll-down-stack (calc-stack-size) (- nn))))))) |
136211a9 EZ |
387 | |
388 | (defun calc-roll-up (n) | |
389 | (interactive "P") | |
390 | (calc-wrapper | |
391 | (let ((nn (prefix-numeric-value n))) | |
392 | (cond ((null n) | |
393 | (calc-roll-up-stack 3)) | |
394 | ((> nn 0) | |
395 | (calc-roll-up-stack nn)) | |
396 | ((= nn 0) | |
397 | (calc-pop-push-list (calc-stack-size) | |
398 | (reverse | |
399 | (calc-top-list (calc-stack-size))))) | |
400 | (t | |
60e4c5a7 | 401 | (calc-roll-up-stack (calc-stack-size) (- nn))))))) |
136211a9 EZ |
402 | |
403 | ||
404 | ||
405 | ||
406 | ;;; Other commands. | |
407 | ||
408 | (defun calc-num-prefix-name (n) | |
409 | (cond ((eq n '-) "- ") | |
410 | ((equal n '(4)) "C-u ") | |
411 | ((consp n) (format "%d " (car n))) | |
412 | ((integerp n) (format "%d " n)) | |
60e4c5a7 | 413 | (t ""))) |
136211a9 EZ |
414 | |
415 | (defun calc-missing-key (n) | |
416 | "This is a placeholder for a command which needs to be loaded from calc-ext. | |
417 | When this key is used, calc-ext (the Calculator extensions module) will be | |
418 | loaded and the keystroke automatically re-typed." | |
419 | (interactive "P") | |
c6d32405 | 420 | (require 'calc-ext) |
136211a9 EZ |
421 | (if (keymapp (key-binding (char-to-string last-command-char))) |
422 | (message "%s%c-" (calc-num-prefix-name n) last-command-char)) | |
423 | (calc-unread-command) | |
60e4c5a7 | 424 | (setq prefix-arg n)) |
136211a9 EZ |
425 | |
426 | (defun calc-shift-Y-prefix-help () | |
427 | (interactive) | |
c6d32405 | 428 | (require 'calc-ext) |
60e4c5a7 | 429 | (calc-do-prefix-help calc-Y-help-msgs "other" ?Y)) |
136211a9 EZ |
430 | |
431 | ||
432 | ||
433 | ||
434 | (defun calcDigit-letter () | |
435 | (interactive) | |
436 | (if (calc-minibuffer-contains "[-+]?\\(1[1-9]\\|[2-9][0-9]\\)#.*") | |
437 | (progn | |
438 | (setq last-command-char (upcase last-command-char)) | |
439 | (calcDigit-key)) | |
60e4c5a7 | 440 | (calcDigit-nondigit))) |
136211a9 EZ |
441 | |
442 | ||
443 | ;; A Lisp version of temp_minibuffer_message from minibuf.c. | |
444 | (defun calc-temp-minibuffer-message (m) | |
445 | (let ((savemax (point-max))) | |
446 | (save-excursion | |
447 | (goto-char (point-max)) | |
448 | (insert m)) | |
449 | (let ((okay nil)) | |
450 | (unwind-protect | |
451 | (progn | |
452 | (sit-for 2) | |
453 | (identity 1) ; this forces a call to QUIT; in bytecode.c. | |
454 | (setq okay t)) | |
455 | (progn | |
456 | (delete-region savemax (point-max)) | |
60e4c5a7 | 457 | (or okay (abort-recursive-edit))))))) |
136211a9 EZ |
458 | |
459 | ||
460 | (put 'math-with-extra-prec 'lisp-indent-hook 1) | |
461 | ||
462 | ||
463 | ;;; Concatenate two vectors, or a vector and an object. [V O O] [Public] | |
464 | (defun math-concat (v1 v2) | |
465 | (if (stringp v1) | |
466 | (concat v1 v2) | |
c6d32405 | 467 | (require 'calc-ext) |
136211a9 EZ |
468 | (if (and (or (math-objvecp v1) (math-known-scalarp v1)) |
469 | (or (math-objvecp v2) (math-known-scalarp v2))) | |
470 | (append (if (and (math-vectorp v1) | |
471 | (or (math-matrixp v1) | |
472 | (not (math-matrixp v2)))) | |
473 | v1 | |
474 | (list 'vec v1)) | |
475 | (if (and (math-vectorp v2) | |
476 | (or (math-matrixp v2) | |
477 | (not (math-matrixp v1)))) | |
478 | (cdr v2) | |
479 | (list v2))) | |
60e4c5a7 | 480 | (list '| v1 v2)))) |
136211a9 EZ |
481 | |
482 | ||
483 | ;;; True if A is zero. Works for un-normalized values. [P n] [Public] | |
484 | (defun math-zerop (a) | |
485 | (if (consp a) | |
486 | (cond ((memq (car a) '(bigpos bigneg)) | |
487 | (while (eq (car (setq a (cdr a))) 0)) | |
488 | (null a)) | |
489 | ((memq (car a) '(frac float polar mod)) | |
490 | (math-zerop (nth 1 a))) | |
491 | ((eq (car a) 'cplx) | |
492 | (and (math-zerop (nth 1 a)) (math-zerop (nth 2 a)))) | |
493 | ((eq (car a) 'hms) | |
494 | (and (math-zerop (nth 1 a)) | |
495 | (math-zerop (nth 2 a)) | |
496 | (math-zerop (nth 3 a))))) | |
60e4c5a7 | 497 | (eq a 0))) |
136211a9 EZ |
498 | |
499 | ||
500 | ;;; True if A is real and negative. [P n] [Public] | |
501 | ||
502 | (defun math-negp (a) | |
503 | (if (consp a) | |
504 | (cond ((eq (car a) 'bigpos) nil) | |
505 | ((eq (car a) 'bigneg) (cdr a)) | |
506 | ((memq (car a) '(float frac)) | |
507 | (Math-integer-negp (nth 1 a))) | |
508 | ((eq (car a) 'hms) | |
509 | (if (math-zerop (nth 1 a)) | |
510 | (if (math-zerop (nth 2 a)) | |
511 | (math-negp (nth 3 a)) | |
512 | (math-negp (nth 2 a))) | |
513 | (math-negp (nth 1 a)))) | |
514 | ((eq (car a) 'date) | |
515 | (math-negp (nth 1 a))) | |
516 | ((eq (car a) 'intv) | |
517 | (or (math-negp (nth 3 a)) | |
518 | (and (math-zerop (nth 3 a)) | |
519 | (memq (nth 1 a) '(0 2))))) | |
520 | ((equal a '(neg (var inf var-inf))) t)) | |
60e4c5a7 | 521 | (< a 0))) |
136211a9 EZ |
522 | |
523 | ;;; True if A is a negative number or an expression the starts with '-'. | |
524 | (defun math-looks-negp (a) ; [P x] [Public] | |
525 | (or (Math-negp a) | |
526 | (eq (car-safe a) 'neg) | |
527 | (and (memq (car-safe a) '(* /)) | |
528 | (or (math-looks-negp (nth 1 a)) | |
529 | (math-looks-negp (nth 2 a)))) | |
530 | (and (eq (car-safe a) '-) | |
60e4c5a7 | 531 | (math-looks-negp (nth 1 a))))) |
136211a9 EZ |
532 | |
533 | ||
534 | ;;; True if A is real and positive. [P n] [Public] | |
535 | (defun math-posp (a) | |
536 | (if (consp a) | |
537 | (cond ((eq (car a) 'bigpos) (cdr a)) | |
538 | ((eq (car a) 'bigneg) nil) | |
539 | ((memq (car a) '(float frac)) | |
540 | (Math-integer-posp (nth 1 a))) | |
541 | ((eq (car a) 'hms) | |
542 | (if (math-zerop (nth 1 a)) | |
543 | (if (math-zerop (nth 2 a)) | |
544 | (math-posp (nth 3 a)) | |
545 | (math-posp (nth 2 a))) | |
546 | (math-posp (nth 1 a)))) | |
547 | ((eq (car a) 'date) | |
548 | (math-posp (nth 1 a))) | |
549 | ((eq (car a) 'mod) | |
550 | (not (math-zerop (nth 1 a)))) | |
551 | ((eq (car a) 'intv) | |
552 | (or (math-posp (nth 2 a)) | |
553 | (and (math-zerop (nth 2 a)) | |
554 | (memq (nth 1 a) '(0 1))))) | |
555 | ((equal a '(var inf var-inf)) t)) | |
60e4c5a7 | 556 | (> a 0))) |
136211a9 | 557 | |
dac12d80 CW |
558 | (defalias 'math-fixnump 'integerp) |
559 | (defalias 'math-fixnatnump 'natnump) | |
136211a9 EZ |
560 | |
561 | ||
562 | ;;; True if A is an even integer. [P R R] [Public] | |
563 | (defun math-evenp (a) | |
564 | (if (consp a) | |
565 | (and (memq (car a) '(bigpos bigneg)) | |
566 | (= (% (nth 1 a) 2) 0)) | |
60e4c5a7 | 567 | (= (% a 2) 0))) |
136211a9 EZ |
568 | |
569 | ;;; Compute A / 2, for small or big integer A. [I i] | |
570 | ;;; If A is negative, type of truncation is undefined. | |
571 | (defun math-div2 (a) | |
572 | (if (consp a) | |
573 | (if (cdr a) | |
574 | (math-normalize (cons (car a) (math-div2-bignum (cdr a)))) | |
575 | 0) | |
60e4c5a7 | 576 | (/ a 2))) |
136211a9 EZ |
577 | |
578 | (defun math-div2-bignum (a) ; [l l] | |
579 | (if (cdr a) | |
580 | (cons (+ (/ (car a) 2) (* (% (nth 1 a) 2) 500)) | |
581 | (math-div2-bignum (cdr a))) | |
60e4c5a7 | 582 | (list (/ (car a) 2)))) |
136211a9 EZ |
583 | |
584 | ||
585 | ;;; Reject an argument to a calculator function. [Public] | |
586 | (defun math-reject-arg (&optional a p option) | |
587 | (if option | |
588 | (calc-record-why option p a) | |
589 | (if p | |
590 | (calc-record-why p a))) | |
60e4c5a7 | 591 | (signal 'wrong-type-argument (and a (if p (list p a) (list a))))) |
136211a9 EZ |
592 | |
593 | ||
594 | ;;; Coerce A to be an integer (by truncation toward zero). [I N] [Public] | |
276d2865 JB |
595 | |
596 | ;; The variable math-trunc-prec is local to math-trunc, but used by | |
597 | ;; math-trunc-fancy in calc-arith.el, which is called by math-trunc. | |
598 | ||
599 | (defun math-trunc (a &optional math-trunc-prec) | |
600 | (cond (math-trunc-prec | |
c6d32405 | 601 | (require 'calc-ext) |
276d2865 | 602 | (math-trunc-special a math-trunc-prec)) |
136211a9 EZ |
603 | ((Math-integerp a) a) |
604 | ((Math-looks-negp a) | |
605 | (math-neg (math-trunc (math-neg a)))) | |
606 | ((eq (car a) 'float) | |
607 | (math-scale-int (nth 1 a) (nth 2 a))) | |
c6d32405 | 608 | (t (require 'calc-ext) |
60e4c5a7 | 609 | (math-trunc-fancy a)))) |
dac12d80 | 610 | (defalias 'calcFunc-trunc 'math-trunc) |
136211a9 EZ |
611 | |
612 | ;;; Coerce A to be an integer (by truncation toward minus infinity). [I N] | |
276d2865 JB |
613 | |
614 | ;; The variable math-floor-prec is local to math-floor, but used by | |
615 | ;; math-floor-fancy in calc-arith.el, which is called by math-floor. | |
616 | ||
617 | (defun math-floor (a &optional math-floor-prec) ; [Public] | |
618 | (cond (math-floor-prec | |
c6d32405 | 619 | (require 'calc-ext) |
276d2865 | 620 | (math-floor-special a math-floor-prec)) |
136211a9 EZ |
621 | ((Math-integerp a) a) |
622 | ((Math-messy-integerp a) (math-trunc a)) | |
623 | ((Math-realp a) | |
624 | (if (Math-negp a) | |
625 | (math-add (math-trunc a) -1) | |
626 | (math-trunc a))) | |
c6d32405 | 627 | (t (require 'calc-ext) |
60e4c5a7 | 628 | (math-floor-fancy a)))) |
dac12d80 | 629 | (defalias 'calcFunc-floor 'math-floor) |
136211a9 EZ |
630 | |
631 | ||
632 | (defun math-imod (a b) ; [I I I] [Public] | |
633 | (if (and (not (consp a)) (not (consp b))) | |
634 | (if (= b 0) | |
635 | (math-reject-arg a "*Division by zero") | |
636 | (% a b)) | |
60e4c5a7 | 637 | (cdr (math-idivmod a b)))) |
136211a9 EZ |
638 | |
639 | ||
640 | (defun calcFunc-inv (m) | |
641 | (if (Math-vectorp m) | |
642 | (progn | |
c6d32405 | 643 | (require 'calc-ext) |
136211a9 EZ |
644 | (if (math-square-matrixp m) |
645 | (or (math-with-extra-prec 2 (math-matrix-inv-raw m)) | |
646 | (math-reject-arg m "*Singular matrix")) | |
647 | (math-reject-arg m 'square-matrixp))) | |
60e4c5a7 | 648 | (math-div 1 m))) |
136211a9 EZ |
649 | |
650 | ||
651 | (defun math-do-working (msg arg) | |
8f66f479 | 652 | (or executing-kbd-macro |
136211a9 EZ |
653 | (progn |
654 | (calc-set-command-flag 'clear-message) | |
655 | (if math-working-step | |
656 | (if math-working-step-2 | |
657 | (setq msg (format "[%d/%d] %s" | |
658 | math-working-step math-working-step-2 msg)) | |
659 | (setq msg (format "[%d] %s" math-working-step msg)))) | |
660 | (message "Working... %s = %s" msg | |
60e4c5a7 | 661 | (math-showing-full-precision (math-format-number arg)))))) |
136211a9 EZ |
662 | |
663 | ||
664 | ;;; Compute A modulo B, defined in terms of truncation toward minus infinity. | |
665 | (defun math-mod (a b) ; [R R R] [Public] | |
666 | (cond ((and (Math-zerop a) (not (eq (car-safe a) 'mod))) a) | |
667 | ((Math-zerop b) | |
668 | (math-reject-arg a "*Division by zero")) | |
669 | ((and (Math-natnump a) (Math-natnump b)) | |
670 | (math-imod a b)) | |
671 | ((and (Math-anglep a) (Math-anglep b)) | |
672 | (math-sub a (math-mul (math-floor (math-div a b)) b))) | |
c6d32405 | 673 | (t (require 'calc-ext) |
60e4c5a7 | 674 | (math-mod-fancy a b)))) |
136211a9 EZ |
675 | |
676 | ||
677 | ||
678 | ;;; General exponentiation. | |
679 | ||
680 | (defun math-pow (a b) ; [O O N] [Public] | |
681 | (cond ((equal b '(var nan var-nan)) | |
682 | b) | |
683 | ((Math-zerop a) | |
684 | (if (and (Math-scalarp b) (Math-posp b)) | |
685 | (if (math-floatp b) (math-float a) a) | |
c6d32405 | 686 | (require 'calc-ext) |
136211a9 EZ |
687 | (math-pow-of-zero a b))) |
688 | ((or (eq a 1) (eq b 1)) a) | |
689 | ((or (equal a '(float 1 0)) (equal b '(float 1 0))) a) | |
690 | ((Math-zerop b) | |
691 | (if (Math-scalarp a) | |
692 | (if (or (math-floatp a) (math-floatp b)) | |
693 | '(float 1 0) 1) | |
c6d32405 | 694 | (require 'calc-ext) |
136211a9 EZ |
695 | (math-pow-zero a b))) |
696 | ((and (Math-integerp b) (or (Math-numberp a) (Math-vectorp a))) | |
697 | (if (and (equal a '(float 1 1)) (integerp b)) | |
698 | (math-make-float 1 b) | |
699 | (math-with-extra-prec 2 | |
700 | (math-ipow a b)))) | |
701 | (t | |
c6d32405 | 702 | (require 'calc-ext) |
60e4c5a7 | 703 | (math-pow-fancy a b)))) |
136211a9 EZ |
704 | |
705 | (defun math-ipow (a n) ; [O O I] [Public] | |
706 | (cond ((Math-integer-negp n) | |
707 | (math-ipow (math-div 1 a) (Math-integer-neg n))) | |
708 | ((not (consp n)) | |
709 | (if (and (Math-ratp a) (> n 20)) | |
710 | (math-iipow-show a n) | |
711 | (math-iipow a n))) | |
712 | ((math-evenp n) | |
713 | (math-ipow (math-mul a a) (math-div2 n))) | |
714 | (t | |
715 | (math-mul a (math-ipow (math-mul a a) | |
60e4c5a7 | 716 | (math-div2 (math-add n -1))))))) |
136211a9 EZ |
717 | |
718 | (defun math-iipow (a n) ; [O O S] | |
719 | (cond ((= n 0) 1) | |
720 | ((= n 1) a) | |
721 | ((= (% n 2) 0) (math-iipow (math-mul a a) (/ n 2))) | |
60e4c5a7 | 722 | (t (math-mul a (math-iipow (math-mul a a) (/ n 2)))))) |
136211a9 EZ |
723 | |
724 | (defun math-iipow-show (a n) ; [O O S] | |
725 | (math-working "pow" a) | |
726 | (let ((val (cond | |
727 | ((= n 0) 1) | |
728 | ((= n 1) a) | |
729 | ((= (% n 2) 0) (math-iipow-show (math-mul a a) (/ n 2))) | |
730 | (t (math-mul a (math-iipow-show (math-mul a a) (/ n 2))))))) | |
731 | (math-working "pow" val) | |
60e4c5a7 | 732 | val)) |
136211a9 EZ |
733 | |
734 | ||
735 | (defun math-read-radix-digit (dig) ; [D S; Z S] | |
736 | (if (> dig ?9) | |
737 | (if (< dig ?A) | |
738 | nil | |
739 | (- dig 55)) | |
740 | (if (>= dig ?0) | |
741 | (- dig ?0) | |
60e4c5a7 | 742 | nil))) |
136211a9 EZ |
743 | |
744 | ||
136211a9 EZ |
745 | ;;; Bug reporting |
746 | ||
afb55b71 | 747 | (defun report-calc-bug () |
136211a9 EZ |
748 | "Report a bug in Calc, the GNU Emacs calculator. |
749 | Prompts for bug subject. Leaves you in a mail buffer." | |
afb55b71 CW |
750 | (interactive) |
751 | (let ((reporter-prompt-for-summary-p t)) | |
752 | (reporter-submit-bug-report calc-bug-address "Calc" '(calc-version) | |
753 | nil nil | |
754 | "Please describe exactly what actions triggered the bug and the | |
8f148852 CW |
755 | precise symptoms of the bug. If possible, include a backtrace by |
756 | doing 'M-x toggle-debug-on-error', then reproducing the bug. | |
afb55b71 | 757 | " ))) |
dac12d80 | 758 | (defalias 'calc-report-bug 'report-calc-bug) |
136211a9 | 759 | |
877dc4f5 JB |
760 | (provide 'calc-misc) |
761 | ||
ab5796a9 | 762 | ;;; arch-tag: 7984d9d0-62e5-41dc-afb8-e904b975f250 |
60e4c5a7 | 763 | ;;; calc-misc.el ends here |