bc511a64f6
Most of this change is to boilerplate commentary such as license URLs. This change was prompted by ftp://ftp.gnu.org's going-away party, planned for November. Change these FTP URLs to https://ftp.gnu.org instead. Make similar changes for URLs to other organizations moving away from FTP. Also, change HTTP to HTTPS for URLs to gnu.org and fsf.org when this works, as this will further help defend against man-in-the-middle attacks (for this part I omitted the MS-DOS and MS-Windows sources and the test tarballs to keep the workload down). HTTPS is not fully working to lists.gnu.org so I left those URLs alone for now.
231 lines
7.1 KiB
EmacsLisp
231 lines
7.1 KiB
EmacsLisp
;;; calc-incom.el --- complex data type input functions for Calc
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;; Copyright (C) 1990-1993, 2001-2017 Free Software Foundation, Inc.
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;; Author: David Gillespie <daveg@synaptics.com>
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
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;;; Commentary:
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;;; Code:
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;; This file is autoloaded from calc-ext.el.
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(require 'calc-ext)
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(require 'calc-macs)
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;;; Incomplete forms.
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(defun calc-begin-complex ()
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(interactive)
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(calc-wrapper
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(if (or calc-algebraic-mode calc-incomplete-algebraic-mode)
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(calc-alg-entry "(")
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(calc-push (list 'incomplete calc-complex-mode)))))
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(defun calc-end-complex ()
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(interactive)
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(calc-comma t)
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(calc-wrapper
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(let ((top (calc-top 1)))
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(if (and (eq (car-safe top) 'incomplete)
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(eq (nth 1 top) 'intv))
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(progn
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(if (< (length top) 4)
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(setq top (append top '((neg (var inf var-inf))))))
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(if (< (length top) 5)
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(setq top (append top '((var inf var-inf)))))
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(calc-enter-result 1 "..)" (cdr top)))
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(if (not (and (eq (car-safe top) 'incomplete)
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(memq (nth 1 top) '(cplx polar))))
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(error "Not entering a complex number"))
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(while (< (length top) 4)
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(setq top (append top '(0))))
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(if (not (and (math-realp (nth 2 top))
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(math-anglep (nth 3 top))))
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(error "Components must be real"))
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(calc-enter-result 1 "()" (cdr top))))))
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(defun calc-begin-vector ()
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(interactive)
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(calc-wrapper
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(if (or calc-algebraic-mode calc-incomplete-algebraic-mode)
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(calc-alg-entry "[")
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(calc-push '(incomplete vec)))))
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(defun calc-end-vector ()
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(interactive)
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(calc-comma t)
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(calc-wrapper
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(let ((top (calc-top 1)))
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(if (and (eq (car-safe top) 'incomplete)
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(eq (nth 1 top) 'intv))
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(progn
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(if (< (length top) 4)
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(setq top (append top '((neg (var inf var-inf))))))
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(if (< (length top) 5)
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(setq top (append top '((var inf var-inf)))))
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(setcar (cdr (cdr top)) (1+ (nth 2 top)))
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(calc-enter-result 1 "..]" (cdr top)))
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(if (not (and (eq (car-safe top) 'incomplete)
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(eq (nth 1 top) 'vec)))
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(error "Not entering a vector"))
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(calc-pop-push-record 1 "[]" (cdr top))))))
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(defun calc-comma (&optional allow-polar)
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(interactive)
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(calc-wrapper
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(let ((num (calc-find-first-incomplete
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(nthcdr calc-stack-top calc-stack) 1)))
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(if (= num 0)
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(error "Not entering a vector or complex number"))
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(let* ((inc (calc-top num))
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(stuff (calc-top-list (1- num)))
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(new (append inc stuff)))
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(if (and (null stuff)
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(not allow-polar)
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(or (eq (nth 1 inc) 'vec)
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(< (length new) 4)))
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(setq new (append new
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(if (= (length new) 2)
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'(0)
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(nthcdr (1- (length new)) new)))))
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(or allow-polar
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(if (eq (nth 1 new) 'polar)
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(setq new (append '(incomplete cplx) (cdr (cdr new))))
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(if (eq (nth 1 new) 'intv)
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(setq new (append '(incomplete cplx)
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(cdr (cdr (cdr new))))))))
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(if (and (memq (nth 1 new) '(cplx polar))
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(> (length new) 4))
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(error "Too many components in complex number"))
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(if (and (eq (nth 1 new) 'intv)
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(> (length new) 5))
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(error "Too many components in interval form"))
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(calc-pop-push num new)))))
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(defun calc-semi ()
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(interactive)
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(calc-wrapper
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(let ((num (calc-find-first-incomplete
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(nthcdr calc-stack-top calc-stack) 1)))
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(if (= num 0)
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(error "Not entering a vector or complex number"))
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(let ((inc (calc-top num))
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(stuff (calc-top-list (1- num))))
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(if (eq (nth 1 inc) 'cplx)
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(setq inc (append '(incomplete polar) (cdr (cdr inc))))
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(if (eq (nth 1 inc) 'intv)
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(setq inc (append '(incomplete polar) (cdr (cdr (cdr inc)))))))
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(cond ((eq (nth 1 inc) 'polar)
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(let ((new (append inc stuff)))
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(if (> (length new) 4)
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(error "Too many components in complex number")
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(if (= (length new) 2)
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(setq new (append new '(1)))))
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(calc-pop-push num new)))
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((null stuff)
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(if (> (length inc) 2)
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(if (math-vectorp (nth 2 inc))
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(calc-comma)
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(calc-pop-push 1
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(list 'incomplete 'vec (cdr (cdr inc)))
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(list 'incomplete 'vec)))))
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((math-vectorp (car stuff))
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(calc-comma))
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((eq (car-safe (car-safe (nth (+ num calc-stack-top)
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calc-stack))) 'incomplete)
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(calc-end-vector)
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(calc-comma)
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(let ((calc-algebraic-mode nil)
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(calc-incomplete-algebraic-mode nil))
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(calc-begin-vector)))
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((or (= (length inc) 2)
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(math-vectorp (nth 2 inc)))
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(calc-pop-push num
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(append inc (list (cons 'vec stuff)))
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(list 'incomplete 'vec)))
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(t
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(calc-pop-push num
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(list 'incomplete 'vec
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(cons 'vec (append (cdr (cdr inc)) stuff)))
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(list 'incomplete 'vec))))))))
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;; The following variables are initially declared in calc.el,
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;; but are used by calc-digit-dots.
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(defvar calc-prev-char)
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(defvar calc-prev-prev-char)
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(defvar calc-digit-value)
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(defun calc-digit-dots ()
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(if (eq calc-prev-char ?.)
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(progn
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(delete-char -1)
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(if (calc-minibuffer-contains ".*\\.\\'")
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(delete-char -1))
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(setq calc-prev-char 'dots
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last-command-event 32)
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(if calc-prev-prev-char
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(calcDigit-nondigit)
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(setq calc-digit-value nil)
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(let ((inhibit-read-only t))
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(erase-buffer))
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(exit-minibuffer)))
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;; just ignore extra decimal point, anticipating ".."
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(delete-char -1)))
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(defun calc-dots ()
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(interactive)
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(calc-wrapper
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(let ((num (calc-find-first-incomplete
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(nthcdr calc-stack-top calc-stack) 1)))
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(if (= num 0)
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(error "Not entering an interval form"))
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(let* ((inc (calc-top num))
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(stuff (calc-top-list (1- num)))
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(new (append inc stuff)))
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(if (not (eq (nth 1 new) 'intv))
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(setq new (append '(incomplete intv)
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(if (eq (nth 1 new) 'vec) '(2) '(0))
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(cdr (cdr new)))))
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(if (and (null stuff)
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(= (length new) 3))
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(setq new (append new '((neg (var inf var-inf))))))
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(if (> (length new) 5)
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(error "Too many components in interval form"))
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(calc-pop-push num new)))))
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(defun calc-find-first-incomplete (stack n)
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(cond ((null stack)
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0)
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((eq (car-safe (car-safe (car stack))) 'incomplete)
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n)
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(t
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(calc-find-first-incomplete (cdr stack) (1+ n)))))
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(defun calc-incomplete-error (a)
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(cond ((memq (nth 1 a) '(cplx polar))
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(error "Complex number is incomplete"))
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((eq (nth 1 a) 'vec)
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(error "Vector is incomplete"))
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((eq (nth 1 a) 'intv)
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(error "Interval form is incomplete"))
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(t (error "Object is incomplete"))))
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(provide 'calc-incom)
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;;; calc-incom.el ends here
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