lisp/calc/calc-mode.el

   1 ;;; calc-mode.el --- calculator modes for Calc
   2
   3 ;; Copyright (C) 1990, 1991, 1992, 1993, 2001 Free Software Foundation, Inc.
   4
   5 ;; Author: David Gillespie <daveg@synaptics.com>
   6 ;; Maintainer: Jay Belanger <belanger@truman.edu>
   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
  25 ;;; Commentary:
  26
  27 ;;; Code:
  28
  29 ;; This file is autoloaded from calc-ext.el.
  30
  31 (require 'calc-ext)
  32 (require 'calc-macs)
  33
  34 (defun calc-line-numbering (n)
  35   (interactive "P")
  36   (calc-wrapper
  37    (message (if (calc-change-mode 'calc-line-numbering n t t)
  38                 "Displaying stack level numbers"
  39               "Hiding stack level numbers"))))
  40
  41 (defun calc-line-breaking (n)
  42   (interactive "P")
  43   (calc-wrapper
  44    (setq n (if n
  45                (and (> (setq n (prefix-numeric-value n)) 0)
  46                     (or (< n 5)
  47                         n))
  48              (not calc-line-breaking)))
  49    (if (calc-change-mode 'calc-line-breaking n t)
  50        (if (integerp calc-line-breaking)
  51            (message "Breaking lines longer than %d characters" n)
  52          (message "Breaking long lines in Stack display"))
  53      (message "Not breaking long lines in Stack display"))))
  54
  55
  56 (defun calc-left-justify (n)
  57   (interactive "P")
  58   (calc-wrapper
  59    (and n (setq n (prefix-numeric-value n)))
  60    (calc-change-mode '(calc-display-just calc-display-origin)
  61                      (list nil n) t)
  62    (if n
  63        (message "Displaying stack entries indented by %d" n)
  64      (message "Displaying stack entries left-justified"))))
  65
  66 (defun calc-center-justify (n)
  67   (interactive "P")
  68   (calc-wrapper
  69    (and n (setq n (prefix-numeric-value n)))
  70    (calc-change-mode '(calc-display-just calc-display-origin)
  71                      (list 'center n) t)
  72    (if n
  73        (message "Displaying stack entries centered on column %d" n)
  74      (message "Displaying stack entries centered in window"))))
  75
  76 (defun calc-right-justify (n)
  77   (interactive "P")
  78   (calc-wrapper
  79    (and n (setq n (prefix-numeric-value n)))
  80    (calc-change-mode '(calc-display-just calc-display-origin)
  81                      (list 'right n) t)
  82    (if n
  83        (message "Displaying stack entries right-justified to column %d" n)
  84      (message "Displaying stack entries right-justified in window"))))
  85
  86 (defun calc-left-label (s)
  87   (interactive "sLefthand label: ")
  88   (calc-wrapper
  89    (or (equal s "")
  90        (setq s (concat s " ")))
  91    (calc-change-mode 'calc-left-label s t)))
  92
  93 (defun calc-right-label (s)
  94   (interactive "sRighthand label: ")
  95   (calc-wrapper
  96    (or (equal s "")
  97        (setq s (concat " " s)))
  98    (calc-change-mode 'calc-right-label s t)))
  99
 100 (defun calc-auto-why (n)
 101   (interactive "P")
 102   (calc-wrapper
 103    (if n
 104        (progn
 105          (setq n (prefix-numeric-value n))
 106          (if (<= n 0) (setq n nil)
 107            (if (> n 1) (setq n t))))
 108      (setq n (and (not (eq calc-auto-why t)) (if calc-auto-why t 1))))
 109    (calc-change-mode 'calc-auto-why n nil)
 110    (cond ((null n)
 111           (message "User must press `w' to explain unsimplified results"))
 112          ((eq n t)
 113           (message "Automatically doing `w' to explain unsimplified results"))
 114          (t
 115           (message "Automatically doing `w' only for unusual messages")))))
 116
 117 (defun calc-group-digits (n)
 118   (interactive "P")
 119   (calc-wrapper
 120    (if n
 121        (progn
 122          (setq n (prefix-numeric-value n))
 123          (cond ((or (> n 0) (< n -1)))
 124                ((= n -1)
 125                 (setq n nil))
 126                (t
 127                 (setq n calc-group-digits))))
 128      (setq n (not calc-group-digits)))
 129    (calc-change-mode 'calc-group-digits n t)
 130    (cond ((null n)
 131           (message "Grouping is off"))
 132          ((integerp n)
 133           (message "Grouping every %d digits" (math-abs n)))
 134          (t
 135           (message "Grouping is on")))))
 136
 137 (defun calc-group-char (ch)
 138   (interactive "cGrouping character: ")
 139   (calc-wrapper
 140    (or (>= ch 32)
 141        (error "Control characters not allowed for grouping"))
 142    (if (= ch ?\\)
 143        (setq ch "\\,")
 144      (setq ch (char-to-string ch)))
 145    (calc-change-mode 'calc-group-char ch calc-group-digits)
 146    (message "Digit grouping character is \"%s\"" ch)))
 147
 148 (defun calc-point-char (ch)
 149   (interactive "cCharacter to use as decimal point: ")
 150   (calc-wrapper
 151    (or (>= ch 32)
 152        (error "Control characters not allowed as decimal point"))
 153    (calc-change-mode 'calc-point-char (char-to-string ch) t)
 154    (message "Decimal point character is \"%c\"" ch)))
 155
 156 (defun calc-normal-notation (n)
 157   (interactive "P")
 158   (calc-wrapper
 159    (calc-change-mode 'calc-float-format
 160                      (let* ((val (if n (prefix-numeric-value n) 0))
 161                             (mode (/ (+ val 5000) 10000)))
 162                        (if (or (< val -5000) (> mode 3))
 163                            (error "Prefix out of range"))
 164                        (setq n (list (aref [float sci eng fix] mode)
 165                                      (- (% (+ val 5000) 10000) 5000))))
 166                      t)
 167    (if (eq (nth 1 n) 0)
 168        (message "Displaying floating-point numbers normally")
 169      (if (> (nth 1 n) 0)
 170          (message
 171           "Displaying floating-point numbers with %d significant digits"
 172           (nth 1 n))
 173        (message "Displaying floating-point numbers with (precision%d)"
 174                 (nth 1 n))))))
 175
 176 (defun calc-fix-notation (n)
 177   (interactive "NDigits after decimal point: ")
 178   (calc-wrapper
 179    (calc-change-mode 'calc-float-format
 180                      (setq n (list 'fix (if n (prefix-numeric-value n) 0)))
 181                      t)
 182    (message "Displaying floats with %d digits after decimal"
 183             (math-abs (nth 1 n)))))
 184
 185 (defun calc-sci-notation (n)
 186   (interactive "P")
 187   (calc-wrapper
 188    (calc-change-mode 'calc-float-format
 189                      (setq n (list 'sci (if n (prefix-numeric-value n) 0)))
 190                      t)
 191    (if (eq (nth 1 n) 0)
 192        (message "Displaying floats in scientific notation")
 193      (if (> (nth 1 n) 0)
 194          (message "Displaying scientific notation with %d significant digits"
 195                   (nth 1 n))
 196        (message "Displaying scientific notation with (precision%d)"
 197                 (nth 1 n))))))
 198
 199 (defun calc-eng-notation (n)
 200   (interactive "P")
 201   (calc-wrapper
 202    (calc-change-mode 'calc-float-format
 203                      (setq n (list 'eng (if n (prefix-numeric-value n) 0)))
 204                      t)
 205    (if (eq (nth 1 n) 0)
 206        (message "Displaying floats in engineering notation")
 207      (if (> (nth 1 n) 0)
 208          (message "Displaying engineering notation with %d significant digits"
 209                   (nth 1 n))
 210        (message "Displaying engineering notation with (precision%d)"
 211                 (nth 1 n))))))
 212
 213
 214 (defun calc-truncate-stack (n &optional rel)
 215   (interactive "P")
 216   (calc-wrapper
 217    (let ((oldtop calc-stack-top)
 218          (newtop calc-stack-top))
 219      (calc-record-undo (list 'set 'saved-stack-top calc-stack-top))
 220      (let ((calc-stack-top 0)
 221            (nn (prefix-numeric-value n)))
 222        (setq newtop
 223              (if n
 224                  (progn
 225                    (if rel
 226                        (setq nn (+ oldtop nn))
 227                      (if (< nn 0)
 228                          (setq nn (+ nn (calc-stack-size)))
 229                        (setq nn (1+ nn))))
 230                    (if (< nn 1)
 231                        1
 232                      (if (> nn (calc-stack-size))
 233                          (calc-stack-size)
 234                        nn)))
 235                (max 1 (calc-locate-cursor-element (point)))))
 236        (if (= newtop oldtop)
 237            ()
 238          (calc-pop-stack 1 oldtop t)
 239          (calc-push-list '(top-of-stack) newtop)
 240          (if calc-line-numbering
 241              (calc-refresh))))
 242      (calc-record-undo (list 'set 'saved-stack-top 0))
 243      (setq calc-stack-top newtop))))
 244
 245 (defun calc-truncate-up (n)
 246   (interactive "p")
 247   (calc-truncate-stack n t))
 248
 249 (defun calc-truncate-down (n)
 250   (interactive "p")
 251   (calc-truncate-stack (- n) t))
 252
 253 (defun calc-display-raw (arg)
 254   (interactive "P")
 255   (calc-wrapper
 256    (setq calc-display-raw (if calc-display-raw nil (if arg 0 t)))
 257    (calc-do-refresh)
 258    (if calc-display-raw
 259        (message "Press d ' again to cancel \"raw\" display mode"))))
 260
 261
 262
 263
 264 ;;; Mode commands.
 265
 266 (defun calc-save-modes ()
 267   (interactive)
 268   (calc-wrapper
 269    (let (pos
 270          (vals (mapcar (function (lambda (v) (symbol-value (car v))))
 271                        calc-mode-var-list)))
 272      (unless calc-settings-file
 273        (error "No `calc-settings-file' specified"))
 274      (set-buffer (find-file-noselect (substitute-in-file-name
 275                                       calc-settings-file)))
 276      (goto-char (point-min))
 277      (if (and (search-forward ";;; Mode settings stored by Calc" nil t)
 278               (progn
 279                 (beginning-of-line)
 280                 (setq pos (point))
 281                 (search-forward "\n;;; End of mode settings" nil t)))
 282          (progn
 283            (beginning-of-line)
 284            (forward-line 1)
 285            (delete-region pos (point)))
 286        (goto-char (point-max))
 287        (insert "\n\n")
 288        (forward-char -1))
 289      (insert ";;; Mode settings stored by Calc on " (current-time-string) "\n")
 290      (let ((list calc-mode-var-list))
 291        (while list
 292          (let* ((v (car (car list)))
 293                 (def (nth 1 (car list)))
 294                 (val (car vals)))
 295            (or (equal val def)
 296                (progn
 297                  (insert "(setq " (symbol-name v) " ")
 298                  (if (and (or (listp val)
 299                               (symbolp val))
 300                           (not (memq val '(nil t))))
 301                      (insert "'"))
 302                  (insert (prin1-to-string val) ")\n"))))
 303          (setq list (cdr list)
 304                vals (cdr vals))))
 305      (run-hooks 'calc-mode-save-hook)
 306      (insert ";;; End of mode settings\n")
 307      (save-buffer))))
 308
 309 (defun calc-settings-file-name (name &optional arg)
 310   (interactive
 311    (list (read-file-name (format "Settings file name (normally %s): "
 312                                  (abbreviate-file-name (or user-init-file
 313                                                            "~/.emacs"))))
 314          current-prefix-arg))
 315   (calc-wrapper
 316    (setq arg (if arg (prefix-numeric-value arg) 0))
 317    (if (equal name "")
 318        (message "Calc settings file is \"%s\"" calc-settings-file)
 319      (if (< (math-abs arg) 2)
 320          (let ((list calc-mode-var-list))
 321            (while list
 322              (set (car (car list)) (nth 1 (car list)))
 323              (setq list (cdr list)))))
 324      ;; FIXME: we should use ~/.calc or so in order to avoid
 325      ;; reexecuting ~/.emacs (it's not always idempotent) -cgw 2001.11.12
 326      (setq calc-settings-file name)
 327      (or (and
 328           calc-settings-file
 329           (string-match "\\.emacs" calc-settings-file)
 330               (> arg 0))
 331          (< arg 0)
 332          (load name t)
 333          (message "New file")))))
 334
 335 (defun math-get-modes-vec ()
 336   (list 'vec
 337         calc-internal-prec
 338         calc-word-size
 339         (calc-stack-size)
 340         calc-number-radix
 341         (+ (if (<= (nth 1 calc-float-format) 0)
 342                (+ calc-internal-prec (nth 1 calc-float-format))
 343              (nth 1 calc-float-format))
 344            (cdr (assq (car calc-float-format)
 345                       '((float . 0) (sci . 10000)
 346                         (eng . 20000) (fix . 30000)))))
 347         (cond ((eq calc-angle-mode 'rad) 2)
 348               ((eq calc-angle-mode 'hms) 3)
 349               (t 1))
 350         (if calc-symbolic-mode 1 0)
 351         (if calc-prefer-frac 1 0)
 352         (if (eq calc-complex-mode 'polar) 1 0)
 353         (cond ((eq calc-matrix-mode 'scalar) 0)
 354               ((eq calc-matrix-mode 'matrix) -2)
 355               (calc-matrix-mode)
 356               (t -1))
 357         (cond ((eq calc-simplify-mode 'none) -1)
 358               ((eq calc-simplify-mode 'num) 0)
 359               ((eq calc-simplify-mode 'binary) 2)
 360               ((eq calc-simplify-mode 'alg) 3)
 361               ((eq calc-simplify-mode 'ext) 4)
 362               ((eq calc-simplify-mode 'units) 5)
 363               (t 1))
 364         (cond ((eq calc-infinite-mode 1) 0)
 365               (calc-infinite-mode 1)
 366               (t -1))))
 367
 368 (defun calc-get-modes (n)
 369   (interactive "P")
 370   (calc-wrapper
 371    (let ((modes (math-get-modes-vec)))
 372      (calc-enter-result 0 "mode"
 373                         (if n
 374                             (if (and (>= (setq n (prefix-numeric-value n)) 1)
 375                                      (< n (length modes)))
 376                                 (nth n modes)
 377                               (error "Prefix out of range"))
 378                           modes)))))
 379
 380 (defun calc-shift-prefix (arg)
 381   (interactive "P")
 382   (calc-wrapper
 383    (setq calc-shift-prefix (if arg
 384                                (> (prefix-numeric-value arg) 0)
 385                              (not calc-shift-prefix)))
 386    (calc-init-prefixes)
 387    (message (if calc-shift-prefix
 388                 "Prefix keys are now case-insensitive"
 389               "Prefix keys must be unshifted (except V, Z)"))))
 390
 391 (defun calc-mode-record-mode (n)
 392   (interactive "P")
 393   (calc-wrapper
 394    (calc-change-mode 'calc-mode-save-mode
 395                      (cond ((null n)
 396                             (cond ((not calc-embedded-info)
 397                                    (if (eq calc-mode-save-mode 'save)
 398                                        'local 'save))
 399                                   ((eq calc-mode-save-mode 'local)  'edit)
 400                                   ((eq calc-mode-save-mode 'edit)   'perm)
 401                                   ((eq calc-mode-save-mode 'perm)   'global)
 402                                   ((eq calc-mode-save-mode 'global) 'save)
 403                                   ((eq calc-mode-save-mode 'save)   nil)
 404                                   ((eq calc-mode-save-mode nil)     'local)))
 405                            ((= (setq n (prefix-numeric-value n)) 0) nil)
 406                            ((= n 2) 'edit)
 407                            ((= n 3) 'perm)
 408                            ((= n 4) 'global)
 409                            ((= n 5) 'save)
 410                            (t 'local)))
 411    (message (cond ((and (eq calc-mode-save-mode 'local) calc-embedded-info)
 412                    "Recording mode changes with [calc-mode: ...]")
 413                   ((eq calc-mode-save-mode 'edit)
 414                    "Recording mode changes with [calc-edit-mode: ...]")
 415                   ((eq calc-mode-save-mode 'perm)
 416                    "Recording mode changes with [calc-perm-mode: ...]")
 417                   ((eq calc-mode-save-mode 'global)
 418                    "Recording mode changes with [calc-global-mode: ...]")
 419                   ((eq calc-mode-save-mode 'save)
 420                    (format "Recording mode changes in \"%s\""
 421                            calc-settings-file))
 422                   (t
 423                    "Not recording mode changes permanently")))))
 424
 425 (defun calc-total-algebraic-mode (flag)
 426   (interactive "P")
 427   (calc-wrapper
 428    (if (eq calc-algebraic-mode 'total)
 429        (calc-algebraic-mode nil)
 430      (calc-change-mode '(calc-algebraic-mode calc-incomplete-algebraic-mode)
 431                        '(total nil))
 432      (use-local-map calc-alg-map)
 433      (message
 434       "All keys begin algebraic entry; use Meta (ESC) for Calc keys"))))
 435
 436 (defun calc-algebraic-mode (flag)
 437   (interactive "P")
 438   (calc-wrapper
 439    (if flag
 440        (calc-change-mode '(calc-algebraic-mode
 441                            calc-incomplete-algebraic-mode)
 442                          (list nil (not calc-incomplete-algebraic-mode)))
 443      (calc-change-mode '(calc-algebraic-mode calc-incomplete-algebraic-mode)
 444                        (list (not calc-algebraic-mode) nil)))
 445    (use-local-map calc-mode-map)
 446    (message (if calc-algebraic-mode
 447                 "Numeric keys and ( and [ begin algebraic entry"
 448               (if calc-incomplete-algebraic-mode
 449                   "Only ( and [ begin algebraic entry"
 450                 "No keys except ' and $ begin algebraic entry")))))
 451
 452 (defun calc-symbolic-mode (n)
 453   (interactive "P")
 454   (calc-wrapper
 455
 456    (message (if (calc-change-mode 'calc-symbolic-mode n nil t)
 457                 "Inexact computations like sqrt(2) are deferred"
 458               "Numerical computations are always done immediately"))))
 459
 460 (defun calc-infinite-mode (n)
 461   (interactive "P")
 462   (calc-wrapper
 463    (if (eq n 0)
 464        (progn
 465          (calc-change-mode 'calc-infinite-mode 1)
 466          (message "Computations like 1 / 0 produce \"inf\""))
 467      (message (if (calc-change-mode 'calc-infinite-mode n nil t)
 468                   "Computations like 1 / 0 produce \"uinf\""
 469                 "Computations like 1 / 0 are left unsimplified")))))
 470
 471 (defun calc-matrix-mode (arg)
 472   (interactive "P")
 473   (calc-wrapper
 474    (calc-change-mode 'calc-matrix-mode
 475                      (cond ((eq arg 0) 'scalar)
 476                            ((< (prefix-numeric-value arg) 1)
 477                             (and (< (prefix-numeric-value arg) -1) 'matrix))
 478                            (arg (prefix-numeric-value arg))
 479                            ((eq calc-matrix-mode 'matrix) 'scalar)
 480                            ((eq calc-matrix-mode 'scalar) nil)
 481                            (t 'matrix)))
 482    (if (integerp calc-matrix-mode)
 483        (message "Variables are assumed to be %dx%d matrices"
 484                 calc-matrix-mode calc-matrix-mode)
 485      (message (if (eq calc-matrix-mode 'matrix)
 486                   "Variables are assumed to be matrices"
 487                 (if calc-matrix-mode
 488                     "Variables are assumed to be scalars (non-matrices)"
 489                   "Variables are not assumed to be matrix or scalar"))))))
 490
 491 (defun calc-set-simplify-mode (mode arg msg)
 492   (calc-change-mode 'calc-simplify-mode
 493                     (if arg
 494                         (and (> (prefix-numeric-value arg) 0)
 495                              mode)
 496                       (and (not (eq calc-simplify-mode mode))
 497                            mode)))
 498   (message (if (eq calc-simplify-mode mode)
 499                msg
 500              "Default simplifications enabled")))
 501
 502 (defun calc-no-simplify-mode (arg)
 503   (interactive "P")
 504   (calc-wrapper
 505    (calc-set-simplify-mode 'none arg
 506                            "All default simplifications are disabled")))
 507
 508 (defun calc-num-simplify-mode (arg)
 509   (interactive "P")
 510   (calc-wrapper
 511    (calc-set-simplify-mode 'num arg
 512                            "Default simplifications apply only if arguments are numeric")))
 513
 514 (defun calc-default-simplify-mode (arg)
 515   (interactive "p")
 516   (cond ((= arg 1)
 517          (calc-wrapper
 518           (calc-set-simplify-mode
 519            nil nil "Usual default simplifications are enabled")))
 520         ((= arg 0) (calc-num-simplify-mode 1))
 521         ((< arg 0) (calc-no-simplify-mode 1))
 522         ((= arg 2) (calc-bin-simplify-mode 1))
 523         ((= arg 3) (calc-alg-simplify-mode 1))
 524         ((= arg 4) (calc-ext-simplify-mode 1))
 525         ((= arg 5) (calc-units-simplify-mode 1))
 526         (t (error "Prefix argument out of range"))))
 527
 528 (defun calc-bin-simplify-mode (arg)
 529   (interactive "P")
 530   (calc-wrapper
 531    (calc-set-simplify-mode 'binary arg
 532                            (format "Binary simplification occurs by default (word size=%d)"
 533                                    calc-word-size))))
 534
 535 (defun calc-alg-simplify-mode (arg)
 536   (interactive "P")
 537   (calc-wrapper
 538    (calc-set-simplify-mode 'alg arg
 539                            "Algebraic simplification occurs by default")))
 540
 541 (defun calc-ext-simplify-mode (arg)
 542   (interactive "P")
 543   (calc-wrapper
 544    (calc-set-simplify-mode 'ext arg
 545                            "Extended algebraic simplification occurs by default")))
 546
 547 (defun calc-units-simplify-mode (arg)
 548   (interactive "P")
 549   (calc-wrapper
 550    (calc-set-simplify-mode 'units arg
 551                            "Units simplification occurs by default")))
 552
 553 (defun calc-auto-recompute (arg)
 554   (interactive "P")
 555   (calc-wrapper
 556    (calc-change-mode 'calc-auto-recompute arg nil t)
 557    (calc-refresh-evaltos)
 558    (message (if calc-auto-recompute
 559                 "Automatically recomputing `=>' forms when necessary"
 560               "Not recomputing `=>' forms automatically"))))
 561
 562 (defun calc-working (n)
 563   (interactive "P")
 564   (calc-wrapper
 565    (cond ((consp n)
 566           (calc-pop-push-record 0 "work"
 567                                 (cond ((eq calc-display-working-message t) 1)
 568                                       (calc-display-working-message 2)
 569                                       (t 0))))
 570          ((eq n 2) (calc-change-mode 'calc-display-working-message 'lots))
 571          ((eq n 0) (calc-change-mode 'calc-display-working-message nil))
 572          ((eq n 1) (calc-change-mode 'calc-display-working-message t)))
 573    (cond ((eq calc-display-working-message t)
 574           (message "\"Working...\" messages enabled"))
 575          (calc-display-working-message
 576           (message "Detailed \"Working...\" messages enabled"))
 577          (t
 578           (message "\"Working...\" messages disabled")))))
 579
 580 (defun calc-always-load-extensions ()
 581   (interactive)
 582   (calc-wrapper
 583    (if (setq calc-always-load-extensions (not calc-always-load-extensions))
 584        (message "Always loading extensions package")
 585      (message "Loading extensions package on demand only"))))
 586
 587
 588 (defun calc-matrix-left-justify ()
 589   (interactive)
 590   (calc-wrapper
 591    (calc-change-mode 'calc-matrix-just nil t)
 592    (message "Matrix elements will be left-justified in columns")))
 593
 594 (defun calc-matrix-center-justify ()
 595   (interactive)
 596   (calc-wrapper
 597    (calc-change-mode 'calc-matrix-just 'center t)
 598    (message "Matrix elements will be centered in columns")))
 599
 600 (defun calc-matrix-right-justify ()
 601   (interactive)
 602   (calc-wrapper
 603    (calc-change-mode 'calc-matrix-just 'right t)
 604    (message "Matrix elements will be right-justified in columns")))
 605
 606 (defun calc-full-vectors (n)
 607   (interactive "P")
 608   (calc-wrapper
 609    (message (if (calc-change-mode 'calc-full-vectors n t t)
 610                 "Displaying long vectors in full"
 611               "Displaying long vectors in [a, b, c, ..., z] notation"))))
 612
 613 (defun calc-full-trail-vectors (n)
 614   (interactive "P")
 615   (calc-wrapper
 616    (message (if (calc-change-mode 'calc-full-trail-vectors n nil t)
 617                 "Recording long vectors in full"
 618               "Recording long vectors in [a, b, c, ..., z] notation"))))
 619
 620 (defun calc-break-vectors (n)
 621   (interactive "P")
 622   (calc-wrapper
 623    (message (if (calc-change-mode 'calc-break-vectors n t t)
 624                 "Displaying vector elements one-per-line"
 625               "Displaying vector elements all on one line"))))
 626
 627 (defun calc-vector-commas ()
 628   (interactive)
 629   (calc-wrapper
 630    (if (calc-change-mode 'calc-vector-commas (if calc-vector-commas nil ",") t)
 631        (message "Separating vector elements with \",\"")
 632      (message "Separating vector elements with spaces"))))
 633
 634 (defun calc-vector-brackets ()
 635   (interactive)
 636   (calc-wrapper
 637    (if (calc-change-mode 'calc-vector-brackets
 638                          (if (equal calc-vector-brackets "[]") nil "[]") t)
 639        (message "Surrounding vectors with \"[]\"")
 640      (message "Not surrounding vectors with brackets"))))
 641
 642 (defun calc-vector-braces ()
 643   (interactive)
 644   (calc-wrapper
 645    (if (calc-change-mode 'calc-vector-brackets
 646                          (if (equal calc-vector-brackets "{}") nil "{}") t)
 647        (message "Surrounding vectors with \"{}\"")
 648      (message "Not surrounding vectors with brackets"))))
 649
 650 (defun calc-vector-parens ()
 651   (interactive)
 652   (calc-wrapper
 653    (if (calc-change-mode 'calc-vector-brackets
 654                          (if (equal calc-vector-brackets "()") nil "()") t)
 655        (message "Surrounding vectors with \"()\"")
 656      (message "Not surrounding vectors with brackets"))))
 657
 658 (defun calc-matrix-brackets (arg)
 659   (interactive "sCode letters (R, O, C, P): ")
 660   (calc-wrapper
 661    (let ((code (append (and (string-match "[rR]" arg) '(R))
 662                        (and (string-match "[oO]" arg) '(O))
 663                        (and (string-match "[cC]" arg) '(C))
 664                        (and (string-match "[pP]" arg) '(P))))
 665          (bad (string-match "[^rRoOcCpP ]" arg)))
 666      (if bad
 667          (error "Unrecognized character: %c" (aref arg bad)))
 668      (calc-change-mode 'calc-matrix-brackets code t))))
 669
 670 (provide 'calc-mode)
 671
 672 ;;; arch-tag: ecc70eea-c712-43f2-9085-4205e58d6ddf
 673 ;;; calc-mode.el ends here