1;;; calc-misc.el --- miscellaneous functions for Calc 2 3;; Copyright (C) 1990, 1991, 1992, 1993, 2001, 2002, 2003, 2004 4;; 2005, 2006, 2007 Free Software Foundation, Inc. 5 6;; Author: David Gillespie <daveg@synaptics.com> 7;; Maintainer: Jay Belanger <jay.p.belanger@gmail.com> 8 9;; This file is part of GNU Emacs. 10 11;; GNU Emacs is free software; you can redistribute it and/or modify 12;; it under the terms of the GNU General Public License as published by 13;; the Free Software Foundation; either version 2, or (at your option) 14;; any later version. 15 16;; GNU Emacs is distributed in the hope that it will be useful, 17;; but WITHOUT ANY WARRANTY; without even the implied warranty of 18;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19;; GNU General Public License for more details. 20 21;; You should have received a copy of the GNU General Public License 22;; along with GNU Emacs; see the file COPYING. If not, write to the 23;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 24;; Boston, MA 02110-1301, USA. 25 26;;; Commentary: 27 28;;; Code: 29 30;; This file is autoloaded from calc.el. 31 32(require 'calc) 33(require 'calc-macs) 34 35(defun calc-dispatch-help (arg) 36 "C-x* is a prefix key sequence; follow it with one of these letters: 37 38For turning Calc on and off: 39 C calc. Start the Calculator in a window at the bottom of the screen. 40 O calc-other-window. Start the Calculator but don't select its window. 41 B calc-big-or-small. Control whether to use the full Emacs screen for Calc. 42 Q quick-calc. Use the Calculator in the minibuffer. 43 K calc-keypad. Start the Calculator in keypad mode (X window system only). 44 E calc-embedded. Use the Calculator on a formula in this editing buffer. 45 J calc-embedded-select. Like E, but select appropriate half of => or :=. 46 W calc-embedded-word. Like E, but activate a single word, i.e., a number. 47 Z calc-user-invocation. Invoke Calc in the way you defined with `Z I' cmd. 48 X calc-quit. Turn Calc off. 49 50For moving data into and out of Calc: 51 G calc-grab-region. Grab the region defined by mark and point into Calc. 52 R calc-grab-rectangle. Grab the rectangle defined by mark, point into Calc. 53 : calc-grab-sum-down. Grab a rectangle and sum the columns. 54 _ calc-grab-sum-across. Grab a rectangle and sum the rows. 55 Y calc-copy-to-buffer. Copy a value from the stack into the editing buffer. 56 57For use with Embedded mode: 58 A calc-embedded-activate. Find and activate all :='s and =>'s in buffer. 59 D calc-embedded-duplicate. Make a copy of this formula and select it. 60 F calc-embedded-new-formula. Insert a new formula at current point. 61 N calc-embedded-next. Advance cursor to next known formula in buffer. 62 P calc-embedded-previous. Advance cursor to previous known formula. 63 U calc-embedded-update-formula. Re-evaluate formula at point. 64 ` calc-embedded-edit. Use calc-edit to edit formula at point. 65 66Documentation: 67 I calc-info. Read the Calculator manual in the Emacs Info system. 68 T calc-tutorial. Run the Calculator Tutorial using the Emacs Info system. 69 S calc-summary. Read the Summary from the Calculator manual in Info. 70 71Miscellaneous: 72 L calc-load-everything. Load all parts of the Calculator into memory. 73 M read-kbd-macro. Read a region of keystroke names as a keyboard macro. 74 0 (zero) calc-reset. Reset Calc stack and modes to default state. 75 76Press `*' twice (`C-x * *') to turn Calc on or off using the same 77Calc user interface as before (either C-x * C or C-x * K; initially C-x * C). 78" 79 (interactive "P") 80 (calc-check-defines) 81 (if calc-dispatch-help 82 (progn 83 (save-window-excursion 84 (describe-function 'calc-dispatch-help) 85 (let ((win (get-buffer-window "*Help*"))) 86 (if win 87 (let (key) 88 (select-window win) 89 (while (progn 90 (message "Calc options: Calc, Keypad, ... %s" 91 "press SPC, DEL to scroll, C-g to cancel") 92 (memq (car (setq key (calc-read-key t))) 93 '(? ?\C-h ?\C-? ?\C-v ?\M-v))) 94 (condition-case err 95 (if (memq (car key) '(? ?\C-v)) 96 (scroll-up) 97 (scroll-down)) 98 (error (beep)))) 99 (calc-unread-command (cdr key)))))) 100 (calc-do-dispatch nil)) 101 (let ((calc-dispatch-help t)) 102 (calc-do-dispatch arg)))) 103 104 105(defun calc-big-or-small (arg) 106 "Toggle Calc between full-screen and regular mode." 107 (interactive "P") 108 (let ((cwin (get-buffer-window "*Calculator*")) 109 (twin (get-buffer-window "*Calc Trail*")) 110 (kwin (get-buffer-window "*Calc Keypad*"))) 111 (if cwin 112 (setq calc-full-mode 113 (if kwin 114 (and twin (eq (window-width twin) (frame-width))) 115 (eq (window-height cwin) (1- (frame-height)))))) 116 (setq calc-full-mode (if arg 117 (> (prefix-numeric-value arg) 0) 118 (not calc-full-mode))) 119 (if kwin 120 (progn 121 (calc-quit) 122 (calc-do-keypad calc-full-mode nil)) 123 (if cwin 124 (progn 125 (calc-quit) 126 (calc nil calc-full-mode nil)))) 127 (message (if calc-full-mode 128 "Now using full screen for Calc" 129 "Now using partial screen for Calc")))) 130 131(defun calc-other-window (&optional interactive) 132 "Invoke the Calculator in another window." 133 (interactive "p") 134 (if (memq major-mode '(calc-mode calc-trail-mode)) 135 (progn 136 (other-window 1) 137 (if (memq major-mode '(calc-mode calc-trail-mode)) 138 (other-window 1))) 139 (if (get-buffer-window "*Calculator*") 140 (calc-quit) 141 (let ((win (selected-window))) 142 (calc nil win interactive))))) 143 144(defun another-calc () 145 "Create another, independent Calculator buffer." 146 (interactive) 147 (if (eq major-mode 'calc-mode) 148 (mapcar (function 149 (lambda (v) 150 (set-default v (symbol-value v)))) calc-local-var-list)) 151 (set-buffer (generate-new-buffer "*Calculator*")) 152 (pop-to-buffer (current-buffer)) 153 (calc-mode)) 154 155(defun calc-info () 156 "Run the Emacs Info system on the Calculator documentation." 157 (interactive) 158 (select-window (get-largest-window)) 159 (info "Calc")) 160 161(defun calc-info-goto-node (node) 162 "Go to a node in the Calculator info documentation." 163 (interactive) 164 (select-window (get-largest-window)) 165 (info (concat "(Calc)" node))) 166 167(defun calc-tutorial () 168 "Run the Emacs Info system on the Calculator Tutorial." 169 (interactive) 170 (if (get-buffer-window "*Calculator*") 171 (calc-quit)) 172 (calc-info-goto-node "Interactive Tutorial") 173 (calc-other-window) 174 (message "Welcome to the Calc Tutorial!")) 175 176(defun calc-info-summary () 177 "Run the Emacs Info system on the Calculator Summary." 178 (interactive) 179 (calc-info-goto-node "Summary")) 180 181(defun calc-help () 182 (interactive) 183 (let ((msgs (append 184 '("Press `h' for complete help; press `?' repeatedly for a summary" 185 "Letter keys: Negate; Precision; Yank; Why; Xtended cmd; Quit" 186 "Letter keys: SHIFT + Undo, reDo; Keep-args; Inverse, Hyperbolic" 187 "Letter keys: SHIFT + sQrt; Sin, Cos, Tan; Exp, Ln, logB" 188 "Letter keys: SHIFT + Floor, Round; Abs, conJ, arG; Pi" 189 "Letter keys: SHIFT + Num-eval; More-recn; eXec-kbd-macro" 190 "Other keys: +, -, *, /, ^, \\ (int div), : (frac div)" 191 "Other keys: & (1/x), | (concat), % (modulo), ! (factorial)" 192 "Other keys: ' (alg-entry), = (eval), ` (edit); M-RET (last-args)" 193 "Other keys: SPC/RET (enter/dup), LFD (over); < > (scroll horiz)" 194 "Other keys: DEL (drop), M-DEL (drop-above); { } (scroll vert)" 195 "Other keys: TAB (swap/roll-dn), M-TAB (roll-up)" 196 "Other keys: [ , ; ] (vector), ( , ) (complex), ( ; ) (polar)" 197 "Prefix keys: Algebra, Binary/business, Convert, Display" 198 "Prefix keys: Functions, Graphics, Help, J (select)" 199 "Prefix keys: Kombinatorics/statistics, Modes, Store/recall" 200 "Prefix keys: Trail/time, Units/statistics, Vector/matrix" 201 "Prefix keys: Z (user), SHIFT + Z (define)" 202 "Prefix keys: prefix + ? gives further help for that prefix") 203 (list (format 204 " Calc %s by Dave Gillespie, daveg@synaptics.com" 205 calc-version))))) 206 (if calc-full-help-flag 207 msgs 208 (if (or calc-inverse-flag calc-hyperbolic-flag) 209 (if calc-inverse-flag 210 (if calc-hyperbolic-flag 211 (calc-inv-hyp-prefix-help) 212 (calc-inverse-prefix-help)) 213 (calc-hyperbolic-prefix-help)) 214 (setq calc-help-phase 215 (if (eq this-command last-command) 216 (% (1+ calc-help-phase) (1+ (length msgs))) 217 0)) 218 (let ((msg (nth calc-help-phase msgs))) 219 (message "%s" (if msg 220 (concat msg ":" 221 (make-string (- (apply 'max 222 (mapcar 'length 223 msgs)) 224 (length msg)) 32) 225 " [?=MORE]") 226 ""))))))) 227 228 229 230 231;;;; Stack and buffer management. 232 233;; The variable calc-last-why-command is set in calc-do-handly-whys 234;; and used in calc-why (in calc-stuff.el). 235(defvar calc-last-why-command) 236 237(defun calc-do-handle-whys () 238 (setq calc-why (sort calc-next-why 239 (function 240 (lambda (x y) 241 (and (eq (car x) '*) (not (eq (car y) '*)))))) 242 calc-next-why nil) 243 (if (and calc-why (or (eq calc-auto-why t) 244 (and (eq (car (car calc-why)) '*) 245 calc-auto-why))) 246 (progn 247 (require 'calc-ext) 248 (calc-explain-why (car calc-why) 249 (if (eq calc-auto-why t) 250 (cdr calc-why) 251 (if calc-auto-why 252 (eq (car (nth 1 calc-why)) '*)))) 253 (setq calc-last-why-command this-command) 254 (calc-clear-command-flag 'clear-message)))) 255 256(defun calc-record-why (&rest stuff) 257 (if (eq (car stuff) 'quiet) 258 (setq stuff (cdr stuff)) 259 (if (and (symbolp (car stuff)) 260 (cdr stuff) 261 (or (Math-objectp (nth 1 stuff)) 262 (and (Math-vectorp (nth 1 stuff)) 263 (math-constp (nth 1 stuff))) 264 (math-infinitep (nth 1 stuff)))) 265 (setq stuff (cons '* stuff)) 266 (if (and (stringp (car stuff)) 267 (string-match "\\`\\*" (car stuff))) 268 (setq stuff (cons '* (cons (substring (car stuff) 1) 269 (cdr stuff))))))) 270 (setq calc-next-why (cons stuff calc-next-why)) 271 nil) 272 273;;; True if A is a constant or vector of constants. [P x] [Public] 274(defun math-constp (a) 275 (or (Math-scalarp a) 276 (and (memq (car a) '(sdev intv mod vec)) 277 (progn 278 (while (and (setq a (cdr a)) 279 (or (Math-scalarp (car a)) ; optimization 280 (math-constp (car a))))) 281 (null a))))) 282 283 284(defun calc-roll-down-stack (n &optional m) 285 (if (< n 0) 286 (calc-roll-up-stack (- n) m) 287 (if (or (= n 0) (> n (calc-stack-size))) (setq n (calc-stack-size))) 288 (or m (setq m 1)) 289 (and (> n 1) 290 (< m n) 291 (if (and calc-any-selections 292 (not calc-use-selections)) 293 (calc-roll-down-with-selections n m) 294 (calc-pop-push-list n 295 (append (calc-top-list m 1) 296 (calc-top-list (- n m) (1+ m)))))))) 297 298(defun calc-roll-up-stack (n &optional m) 299 (if (< n 0) 300 (calc-roll-down-stack (- n) m) 301 (if (or (= n 0) (> n (calc-stack-size))) (setq n (calc-stack-size))) 302 (or m (setq m 1)) 303 (and (> n 1) 304 (< m n) 305 (if (and calc-any-selections 306 (not calc-use-selections)) 307 (calc-roll-up-with-selections n m) 308 (calc-pop-push-list n 309 (append (calc-top-list (- n m) 1) 310 (calc-top-list m (- n m -1)))))))) 311 312 313(defun calc-do-refresh () 314 (if calc-hyperbolic-flag 315 (progn 316 (setq calc-display-dirty t) 317 nil) 318 (calc-refresh) 319 t)) 320 321 322(defun calc-record-list (vals &optional prefix) 323 (while vals 324 (or (eq (car vals) 'top-of-stack) 325 (progn 326 (calc-record (car vals) prefix) 327 (setq prefix "..."))) 328 (setq vals (cdr vals)))) 329 330 331(defun calc-last-args-stub (arg) 332 (interactive "p") 333 (require 'calc-ext) 334 (calc-last-args arg)) 335 336 337(defun calc-power (arg) 338 (interactive "P") 339 (calc-slow-wrapper 340 (if (and (featurep 'calc-ext) 341 (calc-is-inverse)) 342 (calc-binary-op "root" 'calcFunc-nroot arg nil nil) 343 (calc-binary-op "^" 'calcFunc-pow arg nil nil '^)))) 344 345(defun calc-mod (arg) 346 (interactive "P") 347 (calc-slow-wrapper 348 (calc-binary-op "%" 'calcFunc-mod arg nil nil '%))) 349 350(defun calc-inv (arg) 351 (interactive "P") 352 (calc-slow-wrapper 353 (calc-unary-op "inv" 'calcFunc-inv arg))) 354 355(defun calc-percent () 356 (interactive) 357 (calc-slow-wrapper 358 (calc-pop-push-record-list 359 1 "%" (list (list 'calcFunc-percent (calc-top-n 1)))))) 360 361 362(defun calc-over (n) 363 (interactive "P") 364 (if n 365 (calc-enter (- (prefix-numeric-value n))) 366 (calc-enter -2))) 367 368 369(defun calc-pop-above (n) 370 (interactive "P") 371 (if n 372 (calc-pop (- (prefix-numeric-value n))) 373 (calc-pop -2))) 374 375(defun calc-roll-down (n) 376 (interactive "P") 377 (calc-wrapper 378 (let ((nn (prefix-numeric-value n))) 379 (cond ((null n) 380 (calc-roll-down-stack 2)) 381 ((> nn 0) 382 (calc-roll-down-stack nn)) 383 ((= nn 0) 384 (calc-pop-push-list (calc-stack-size) 385 (reverse 386 (calc-top-list (calc-stack-size))))) 387 (t 388 (calc-roll-down-stack (calc-stack-size) (- nn))))))) 389 390(defun calc-roll-up (n) 391 (interactive "P") 392 (calc-wrapper 393 (let ((nn (prefix-numeric-value n))) 394 (cond ((null n) 395 (calc-roll-up-stack 3)) 396 ((> nn 0) 397 (calc-roll-up-stack nn)) 398 ((= nn 0) 399 (calc-pop-push-list (calc-stack-size) 400 (reverse 401 (calc-top-list (calc-stack-size))))) 402 (t 403 (calc-roll-up-stack (calc-stack-size) (- nn))))))) 404 405 406 407 408;;; Other commands. 409 410(defun calc-num-prefix-name (n) 411 (cond ((eq n '-) "- ") 412 ((equal n '(4)) "C-u ") 413 ((consp n) (format "%d " (car n))) 414 ((integerp n) (format "%d " n)) 415 (t ""))) 416 417(defun calc-missing-key (n) 418 "This is a placeholder for a command which needs to be loaded from calc-ext. 419When this key is used, calc-ext (the Calculator extensions module) will be 420loaded and the keystroke automatically re-typed." 421 (interactive "P") 422 (require 'calc-ext) 423 (if (keymapp (key-binding (char-to-string last-command-char))) 424 (message "%s%c-" (calc-num-prefix-name n) last-command-char)) 425 (calc-unread-command) 426 (setq prefix-arg n)) 427 428(defun calc-shift-Y-prefix-help () 429 (interactive) 430 (require 'calc-ext) 431 (calc-do-prefix-help calc-Y-help-msgs "other" ?Y)) 432 433 434 435 436(defun calcDigit-letter () 437 (interactive) 438 (if (calc-minibuffer-contains "[-+]?\\(1[1-9]\\|[2-9][0-9]\\)#.*") 439 (progn 440 (setq last-command-char (upcase last-command-char)) 441 (calcDigit-key)) 442 (calcDigit-nondigit))) 443 444 445;; A Lisp version of temp_minibuffer_message from minibuf.c. 446(defun calc-temp-minibuffer-message (m) 447 (let ((savemax (point-max))) 448 (save-excursion 449 (goto-char (point-max)) 450 (insert m)) 451 (let ((okay nil)) 452 (unwind-protect 453 (progn 454 (sit-for 2) 455 (identity 1) ; this forces a call to QUIT; in bytecode.c. 456 (setq okay t)) 457 (progn 458 (delete-region savemax (point-max)) 459 (or okay (abort-recursive-edit))))))) 460 461 462(put 'math-with-extra-prec 'lisp-indent-hook 1) 463 464 465;;; Concatenate two vectors, or a vector and an object. [V O O] [Public] 466(defun math-concat (v1 v2) 467 (if (stringp v1) 468 (concat v1 v2) 469 (require 'calc-ext) 470 (if (and (or (math-objvecp v1) (math-known-scalarp v1)) 471 (or (math-objvecp v2) (math-known-scalarp v2))) 472 (append (if (and (math-vectorp v1) 473 (or (math-matrixp v1) 474 (not (math-matrixp v2)))) 475 v1 476 (list 'vec v1)) 477 (if (and (math-vectorp v2) 478 (or (math-matrixp v2) 479 (not (math-matrixp v1)))) 480 (cdr v2) 481 (list v2))) 482 (list '| v1 v2)))) 483 484 485;;; True if A is zero. Works for un-normalized values. [P n] [Public] 486(defun math-zerop (a) 487 (if (consp a) 488 (cond ((memq (car a) '(bigpos bigneg)) 489 (while (eq (car (setq a (cdr a))) 0)) 490 (null a)) 491 ((memq (car a) '(frac float polar mod)) 492 (math-zerop (nth 1 a))) 493 ((eq (car a) 'cplx) 494 (and (math-zerop (nth 1 a)) (math-zerop (nth 2 a)))) 495 ((eq (car a) 'hms) 496 (and (math-zerop (nth 1 a)) 497 (math-zerop (nth 2 a)) 498 (math-zerop (nth 3 a))))) 499 (eq a 0))) 500 501 502;;; True if A is real and negative. [P n] [Public] 503 504(defun math-negp (a) 505 (if (consp a) 506 (cond ((eq (car a) 'bigpos) nil) 507 ((eq (car a) 'bigneg) (cdr a)) 508 ((memq (car a) '(float frac)) 509 (Math-integer-negp (nth 1 a))) 510 ((eq (car a) 'hms) 511 (if (math-zerop (nth 1 a)) 512 (if (math-zerop (nth 2 a)) 513 (math-negp (nth 3 a)) 514 (math-negp (nth 2 a))) 515 (math-negp (nth 1 a)))) 516 ((eq (car a) 'date) 517 (math-negp (nth 1 a))) 518 ((eq (car a) 'intv) 519 (or (math-negp (nth 3 a)) 520 (and (math-zerop (nth 3 a)) 521 (memq (nth 1 a) '(0 2))))) 522 ((equal a '(neg (var inf var-inf))) t)) 523 (< a 0))) 524 525;;; True if A is a negative number or an expression the starts with '-'. 526(defun math-looks-negp (a) ; [P x] [Public] 527 (or (Math-negp a) 528 (eq (car-safe a) 'neg) 529 (and (memq (car-safe a) '(* /)) 530 (or (math-looks-negp (nth 1 a)) 531 (math-looks-negp (nth 2 a)))) 532 (and (eq (car-safe a) '-) 533 (math-looks-negp (nth 1 a))))) 534 535 536;;; True if A is real and positive. [P n] [Public] 537(defun math-posp (a) 538 (if (consp a) 539 (cond ((eq (car a) 'bigpos) (cdr a)) 540 ((eq (car a) 'bigneg) nil) 541 ((memq (car a) '(float frac)) 542 (Math-integer-posp (nth 1 a))) 543 ((eq (car a) 'hms) 544 (if (math-zerop (nth 1 a)) 545 (if (math-zerop (nth 2 a)) 546 (math-posp (nth 3 a)) 547 (math-posp (nth 2 a))) 548 (math-posp (nth 1 a)))) 549 ((eq (car a) 'date) 550 (math-posp (nth 1 a))) 551 ((eq (car a) 'mod) 552 (not (math-zerop (nth 1 a)))) 553 ((eq (car a) 'intv) 554 (or (math-posp (nth 2 a)) 555 (and (math-zerop (nth 2 a)) 556 (memq (nth 1 a) '(0 1))))) 557 ((equal a '(var inf var-inf)) t)) 558 (> a 0))) 559 560(defalias 'math-fixnump 'integerp) 561(defalias 'math-fixnatnump 'natnump) 562 563 564;;; True if A is an even integer. [P R R] [Public] 565(defun math-evenp (a) 566 (if (consp a) 567 (and (memq (car a) '(bigpos bigneg)) 568 (= (% (nth 1 a) 2) 0)) 569 (= (% a 2) 0))) 570 571;;; Compute A / 2, for small or big integer A. [I i] 572;;; If A is negative, type of truncation is undefined. 573(defun math-div2 (a) 574 (if (consp a) 575 (if (cdr a) 576 (math-normalize (cons (car a) (math-div2-bignum (cdr a)))) 577 0) 578 (/ a 2))) 579 580(defun math-div2-bignum (a) ; [l l] 581 (if (cdr a) 582 (cons (+ (/ (car a) 2) (* (% (nth 1 a) 2) 500)) 583 (math-div2-bignum (cdr a))) 584 (list (/ (car a) 2)))) 585 586 587;;; Reject an argument to a calculator function. [Public] 588(defun math-reject-arg (&optional a p option) 589 (if option 590 (calc-record-why option p a) 591 (if p 592 (calc-record-why p a))) 593 (signal 'wrong-type-argument (and a (if p (list p a) (list a))))) 594 595 596;;; Coerce A to be an integer (by truncation toward zero). [I N] [Public] 597 598;; The variable math-trunc-prec is local to math-trunc, but used by 599;; math-trunc-fancy in calc-arith.el, which is called by math-trunc. 600 601(defun math-trunc (a &optional math-trunc-prec) 602 (cond (math-trunc-prec 603 (require 'calc-ext) 604 (math-trunc-special a math-trunc-prec)) 605 ((Math-integerp a) a) 606 ((Math-looks-negp a) 607 (math-neg (math-trunc (math-neg a)))) 608 ((eq (car a) 'float) 609 (math-scale-int (nth 1 a) (nth 2 a))) 610 (t (require 'calc-ext) 611 (math-trunc-fancy a)))) 612(defalias 'calcFunc-trunc 'math-trunc) 613 614;;; Coerce A to be an integer (by truncation toward minus infinity). [I N] 615 616;; The variable math-floor-prec is local to math-floor, but used by 617;; math-floor-fancy in calc-arith.el, which is called by math-floor. 618 619(defun math-floor (a &optional math-floor-prec) ; [Public] 620 (cond (math-floor-prec 621 (require 'calc-ext) 622 (math-floor-special a math-floor-prec)) 623 ((Math-integerp a) a) 624 ((Math-messy-integerp a) (math-trunc a)) 625 ((Math-realp a) 626 (if (Math-negp a) 627 (math-add (math-trunc a) -1) 628 (math-trunc a))) 629 (t (require 'calc-ext) 630 (math-floor-fancy a)))) 631(defalias 'calcFunc-floor 'math-floor) 632 633 634(defun math-imod (a b) ; [I I I] [Public] 635 (if (and (not (consp a)) (not (consp b))) 636 (if (= b 0) 637 (math-reject-arg a "*Division by zero") 638 (% a b)) 639 (cdr (math-idivmod a b)))) 640 641 642(defun calcFunc-inv (m) 643 (if (Math-vectorp m) 644 (progn 645 (require 'calc-ext) 646 (if (math-square-matrixp m) 647 (or (math-with-extra-prec 2 (math-matrix-inv-raw m)) 648 (math-reject-arg m "*Singular matrix")) 649 (math-reject-arg m 'square-matrixp))) 650 (if (and 651 (require 'calc-arith) 652 (math-known-matrixp m)) 653 (math-pow m -1) 654 (math-div 1 m)))) 655 656(defun math-do-working (msg arg) 657 (or executing-kbd-macro 658 (progn 659 (calc-set-command-flag 'clear-message) 660 (if math-working-step 661 (if math-working-step-2 662 (setq msg (format "[%d/%d] %s" 663 math-working-step math-working-step-2 msg)) 664 (setq msg (format "[%d] %s" math-working-step msg)))) 665 (message "Working... %s = %s" msg 666 (math-showing-full-precision (math-format-number arg)))))) 667 668 669;;; Compute A modulo B, defined in terms of truncation toward minus infinity. 670(defun math-mod (a b) ; [R R R] [Public] 671 (cond ((and (Math-zerop a) (not (eq (car-safe a) 'mod))) a) 672 ((Math-zerop b) 673 (math-reject-arg a "*Division by zero")) 674 ((and (Math-natnump a) (Math-natnump b)) 675 (math-imod a b)) 676 ((and (Math-anglep a) (Math-anglep b)) 677 (math-sub a (math-mul (math-floor (math-div a b)) b))) 678 (t (require 'calc-ext) 679 (math-mod-fancy a b)))) 680 681 682 683;;; General exponentiation. 684 685(defun math-pow (a b) ; [O O N] [Public] 686 (cond ((equal b '(var nan var-nan)) 687 b) 688 ((Math-zerop a) 689 (if (and (Math-scalarp b) (Math-posp b)) 690 (if (math-floatp b) (math-float a) a) 691 (require 'calc-ext) 692 (math-pow-of-zero a b))) 693 ((or (eq a 1) (eq b 1)) a) 694 ((or (equal a '(float 1 0)) (equal b '(float 1 0))) a) 695 ((Math-zerop b) 696 (if (Math-scalarp a) 697 (if (or (math-floatp a) (math-floatp b)) 698 '(float 1 0) 1) 699 (require 'calc-ext) 700 (math-pow-zero a b))) 701 ((and (Math-integerp b) (or (Math-numberp a) (Math-vectorp a))) 702 (if (and (equal a '(float 1 1)) (integerp b)) 703 (math-make-float 1 b) 704 (math-with-extra-prec 2 705 (math-ipow a b)))) 706 (t 707 (require 'calc-ext) 708 (math-pow-fancy a b)))) 709 710(defun math-ipow (a n) ; [O O I] [Public] 711 (cond ((Math-integer-negp n) 712 (math-ipow (math-div 1 a) (Math-integer-neg n))) 713 ((not (consp n)) 714 (if (and (Math-ratp a) (> n 20)) 715 (math-iipow-show a n) 716 (math-iipow a n))) 717 ((math-evenp n) 718 (math-ipow (math-mul a a) (math-div2 n))) 719 (t 720 (math-mul a (math-ipow (math-mul a a) 721 (math-div2 (math-add n -1))))))) 722 723(defun math-iipow (a n) ; [O O S] 724 (cond ((= n 0) 1) 725 ((= n 1) a) 726 ((= (% n 2) 0) (math-iipow (math-mul a a) (/ n 2))) 727 (t (math-mul a (math-iipow (math-mul a a) (/ n 2)))))) 728 729(defun math-iipow-show (a n) ; [O O S] 730 (math-working "pow" a) 731 (let ((val (cond 732 ((= n 0) 1) 733 ((= n 1) a) 734 ((= (% n 2) 0) (math-iipow-show (math-mul a a) (/ n 2))) 735 (t (math-mul a (math-iipow-show (math-mul a a) (/ n 2))))))) 736 (math-working "pow" val) 737 val)) 738 739 740(defun math-read-radix-digit (dig) ; [D S; Z S] 741 (if (> dig ?9) 742 (if (< dig ?A) 743 nil 744 (- dig 55)) 745 (if (>= dig ?0) 746 (- dig ?0) 747 nil))) 748 749 750;;; Bug reporting 751 752(defun report-calc-bug () 753 "Report a bug in Calc, the GNU Emacs calculator. 754Prompts for bug subject. Leaves you in a mail buffer." 755 (interactive) 756 (let ((reporter-prompt-for-summary-p t)) 757 (reporter-submit-bug-report calc-bug-address "Calc" '(calc-version) 758 nil nil 759 "Please describe exactly what actions triggered the bug and the 760precise symptoms of the bug. If possible, include a backtrace by 761doing 'M-x toggle-debug-on-error', then reproducing the bug. 762" ))) 763(defalias 'calc-report-bug 'report-calc-bug) 764 765(provide 'calc-misc) 766 767;;; arch-tag: 7984d9d0-62e5-41dc-afb8-e904b975f250 768;;; calc-misc.el ends here 769