/usr/share/maxima/5.41.0/src/rzmac.lisp is in maxima-src 5.41.0-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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;;; The data in this file contains enhancments. ;;;;;
;;; ;;;;;
;;; Copyright (c) 1984,1987 by William Schelter,University of Texas ;;;;;
;;; All rights reserved ;;;;;
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;;; (c) Copyright 1980 Massachusetts Institute of Technology ;;;
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(in-package :maxima)
(macsyma-module rzmac macro)
;;; *****************************************************************
;;; ***** MACROS ******* ASSORTED MACROS FOR GENERAL REPRESENTATION *
;;; *****************************************************************
(defmacro *bind* (bindings &body body)
(nconc (list 'do (mapcar #'(lambda (q)
(cond ((atom q)
(list q))
((eq (cadr q) '|<-|)
(list (car q) (caddr q)))
(t q)))
bindings)
'(nil))
(maplist #'(lambda (x)
(cond ((null (cdr x))
(cons 'return x))
((car x))))
body)))
;; Returns the negation of VALUE if PREDICATE is true. Otherwise, just
;; returns VALUE.
(defmacro negate-if (predicate value &aux (temp (gensym)))
`(let ((,temp ,predicate))
(if ,temp
(neg ,value)
,value)))
;; Setq's the first variable to VALUE if SWITCH is true, and sets the second
;; variable otherwise.
(defmacro set-either (first-var second-var switch value &aux (temp (gensym)))
`(let ((,temp ,value))
(if ,switch
(setq ,first-var ,temp)
(setq ,second-var ,temp))))
;; symbolic arithmetic macros
(defmacro m+ (&rest body) `(add* . ,body))
(defmacro m* (&rest body) `(mul* . ,body))
(defmacro m1+ (x) `(add* 1 ,x))
(defmacro m1- (x) `(add* -1 ,x))
(defmacro m// (a1 &optional (a2 nil 2args))
(if 2args
`(div* ,a1 ,a2)
`(inv* ,a1)))
(defmacro m- (a1 &optional (a2 nil 2args))
(if 2args
`(sub* ,a1 ,a2)
`(mul* -1 ,a1)))
(defmacro m^ (b e) `(power* ,b ,e))
(defmacro m+l (l) `(addn ,l nil))
(defmacro m*l (l) `(muln ,l nil))
(defmacro m+t (&rest body) `(add . ,body))
(defmacro m*t (&rest body) `(mul . ,body))
(defmacro m1+t (x) `(add 1 ,x))
(defmacro m1-t (x) `(add -1 ,x))
(defmacro m//t (a1 &optional (a2 nil 2args))
(if 2args
`(div ,a1 ,a2)
`(inv ,a1)))
(defmacro m-t (a1 &optional (a2 nil 2args))
(if 2args
`(sub ,a1 ,a2)
`(neg ,a1)))
(defmacro m^t (b e) `(power ,b ,e))
(defmacro m+lt (l) `(addn ,l ,t))
(defmacro m*lt (l) `(muln ,l ,t))
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