]> git.eshelyaron.com Git - emacs.git/commitdiff
(var): Define for compiler.
authorGlenn Morris <rgm@gnu.org>
Sat, 19 Sep 2009 21:11:40 +0000 (21:11 +0000)
committerGlenn Morris <rgm@gnu.org>
Sat, 19 Sep 2009 21:11:40 +0000 (21:11 +0000)
Delete trailing whitespace.

lisp/ChangeLog
lisp/calc/calc-alg.el
lisp/calc/calcalg2.el

index dfd9aee6bf1781b53f6ebb960416f9bde8cf1b13..590c26c27ba59104b211fa282dd9a49924ec550c 100644 (file)
@@ -1,3 +1,8 @@
+2009-09-19  Glenn Morris  <rgm@gnu.org>
+
+       * calc/calc-alg.el (var):
+       * calc/calcalg2.el (var): Define for compiler.
+
 2009-09-19  Chong Yidong  <cyd@stupidchicken.com>
 
        * emacs-lisp/advice.el (ad-get-argument, ad-set-argument): Doc
index f4be1a5e03662ca2579489d4dafc13987d01ed16..e23ed7c50cafced8b164c004aa9da1ad9f34f905 100644 (file)
   (calc-slow-wrapper
    (let ((top (calc-top-n 1)))
      (if (calc-is-inverse)
-         (setq top 
+         (setq top
                (let ((calc-simplify-mode nil))
                  (math-normalize (math-trig-rewrite top)))))
      (if (calc-is-hyperbolic)
-         (setq top 
+         (setq top
                (let ((calc-simplify-mode nil))
                  (math-normalize (math-hyperbolic-trig-rewrite top)))))
      (calc-with-default-simplification
    (t
     (mapcar 'math-hyperbolic-trig-rewrite fn))))
 
-;; math-top-only is local to math-simplify, but is used by 
+;; math-top-only is local to math-simplify, but is used by
 ;; math-simplify-step, which is called by math-simplify.
 (defvar math-top-only)
 
        aaa temp)
     (while (memq (car-safe (setq aaa (nth 1 aa))) '(+ -))
       (if (setq temp (math-combine-sum (nth 2 aaa) (nth 2 math-simplify-expr)
-                                      (eq (car aaa) '-) 
+                                      (eq (car aaa) '-)
                                        (eq (car math-simplify-expr) '-) t))
          (progn
            (setcar (cdr (cdr math-simplify-expr)) temp)
          (setcar (cdr math-simplify-expr) (math-mul (nth 1 math-simplify-expr) temp))))
     (while (and (eq (car-safe (setq aaa (nth 2 aa))) '*)
                safe)
-      (if (setq temp (math-combine-prod (nth 1 math-simplify-expr) 
+      (if (setq temp (math-combine-prod (nth 1 math-simplify-expr)
                                         (nth 1 aaa) nil nil t))
          (progn
            (setcar (cdr math-simplify-expr) temp)
          (setcar (cdr (cdr aa)) 1)))
     (if (and (eq (car-safe (nth 1 math-simplify-expr)) 'frac)
             (memq (nth 1 (nth 1 math-simplify-expr)) '(1 -1)))
-       (math-div (math-mul (nth 2 math-simplify-expr) 
+       (math-div (math-mul (nth 2 math-simplify-expr)
                             (nth 1 (nth 1 math-simplify-expr)))
                  (nth 2 (nth 1 math-simplify-expr)))
       math-simplify-expr)))
 (defun math-simplify-divide ()
   (let ((np (cdr math-simplify-expr))
        (nover nil)
-       (nn (and (or (eq (car math-simplify-expr) '/) 
+       (nn (and (or (eq (car math-simplify-expr) '/)
                      (not (Math-realp (nth 2 math-simplify-expr))))
                 (math-common-constant-factor (nth 2 math-simplify-expr))))
        n op)
     (if nn
        (progn
-         (setq n (and (or (eq (car math-simplify-expr) '/) 
+         (setq n (and (or (eq (car math-simplify-expr) '/)
                            (not (Math-realp (nth 1 math-simplify-expr))))
                       (math-common-constant-factor (nth 1 math-simplify-expr))))
          (if (and (eq (car-safe nn) 'frac) (eq (nth 1 nn) 1) (not n))
              (progn
-               (setcar (cdr math-simplify-expr) 
+               (setcar (cdr math-simplify-expr)
                         (math-mul (nth 2 nn) (nth 1 math-simplify-expr)))
                (setcar (cdr (cdr math-simplify-expr))
                        (math-cancel-common-factor (nth 2 math-simplify-expr) nn))
                  (setcar (cdr (cdr math-simplify-expr))
                          (math-cancel-common-factor (nth 2 math-simplify-expr) n))
                  (if (and (math-negp n)
-                          (setq op (assq (car math-simplify-expr) 
+                          (setq op (assq (car math-simplify-expr)
                                           calc-tweak-eqn-table)))
                      (setcar math-simplify-expr (nth 1 op))))))))
     (if (and (eq (car-safe (car np)) '/)
 (defvar math-simplify-divisor-nover)
 (defvar math-simplify-divisor-dover)
 
-(defun math-simplify-divisor (np dp math-simplify-divisor-nover 
+(defun math-simplify-divisor (np dp math-simplify-divisor-nover
                                  math-simplify-divisor-dover)
   (cond ((eq (car-safe (car dp)) '/)
-        (math-simplify-divisor np (cdr (car dp)) 
-                                math-simplify-divisor-nover 
+        (math-simplify-divisor np (cdr (car dp))
+                                math-simplify-divisor-nover
                                 math-simplify-divisor-dover)
         (and (math-known-scalarp (nth 1 (car dp)) t)
              (math-simplify-divisor np (cdr (cdr (car dp)))
-                                    math-simplify-divisor-nover 
+                                    math-simplify-divisor-nover
                                      (not math-simplify-divisor-dover))))
        ((or (or (eq (car math-simplify-expr) '/)
                 (let ((signs (math-possible-signs (car np))))
                       math-living-dangerously)))
             (math-numberp (car np)))
         (let (d
-               (safe t) 
+               (safe t)
                (scalar (math-known-scalarp (car np))))
           (while (and (eq (car-safe (setq d (car dp))) '*)
                       safe)
               (math-simplify-one-divisor np dp))))))
 
 (defun math-simplify-one-divisor (np dp)
-  (let ((temp (math-combine-prod (car np) (car dp) math-simplify-divisor-nover 
+  (let ((temp (math-combine-prod (car np) (car dp) math-simplify-divisor-nover
                                  math-simplify-divisor-dover t))
         op)
-    (if temp 
+    (if temp
         (progn
           (and (not (memq (car math-simplify-expr) '(/ calcFunc-eq calcFunc-neq)))
                (math-known-negp (car dp))
                (setcar math-simplify-expr (nth 1 op)))
           (setcar np (if math-simplify-divisor-nover (math-div 1 temp) temp))
           (setcar dp 1))
-      (and math-simplify-divisor-dover (not math-simplify-divisor-nover) 
+      (and math-simplify-divisor-dover (not math-simplify-divisor-nover)
            (eq (car math-simplify-expr) '/)
            (eq (car-safe (car dp)) 'calcFunc-sqrt)
            (Math-integerp (nth 1 (car dp)))
       (math-simplify-add-term (cdr (cdr n)) (cdr (cdr math-simplify-expr))
                              (eq (car n) '-) nil)
       (setq np (cdr n)))
-    (math-simplify-add-term np (cdr (cdr math-simplify-expr)) nil 
+    (math-simplify-add-term np (cdr (cdr math-simplify-expr)) nil
                             (eq np (cdr math-simplify-expr)))
     (math-simplify-divide)
     (let ((signs (math-possible-signs (cons '- (cdr math-simplify-expr)))))
             (and n
                  (math-known-sin (car n) (nth 1 n) '(frac 2 3) 0))))
       (and (eq (car-safe (nth 1 math-simplify-expr)) 'calcFunc-arccos)
-          (list 'calcFunc-sqrt (math-sub 1 (math-sqr 
+          (list 'calcFunc-sqrt (math-sub 1 (math-sqr
                                              (nth 1 (nth 1 math-simplify-expr))))))
       (and (eq (car-safe (nth 1 math-simplify-expr)) 'calcFunc-arctan)
           (math-div (nth 1 (nth 1 math-simplify-expr))
                     (list 'calcFunc-sqrt
-                          (math-add 1 (math-sqr 
+                          (math-add 1 (math-sqr
                                         (nth 1 (nth 1 math-simplify-expr)))))))
       (let ((m (math-should-expand-trig (nth 1 math-simplify-expr))))
        (and m (integerp (car m))
             (and n
                  (math-known-sin (car n) (nth 1 n) '(frac 2 3) 300))))
       (and (eq (car-safe (nth 1 math-simplify-expr)) 'calcFunc-arcsin)
-          (list 'calcFunc-sqrt 
+          (list 'calcFunc-sqrt
                  (math-sub 1 (math-sqr (nth 1 (nth 1 math-simplify-expr))))))
       (and (eq (car-safe (nth 1 math-simplify-expr)) 'calcFunc-arctan)
           (math-div 1
                     (list 'calcFunc-sqrt
-                          (math-add 1 
+                          (math-add 1
                                      (math-sqr (nth 1 (nth 1 math-simplify-expr)))))))
       (let ((m (math-should-expand-trig (nth 1 math-simplify-expr))))
        (and m (integerp (car m))
             (and n
                   (math-div 1 (math-known-sin (car n) (nth 1 n) '(frac 2 3) 300)))))
       (and (eq (car-safe (nth 1 math-simplify-expr)) 'calcFunc-arcsin)
-           (math-div 
+           (math-div
             1
-            (list 'calcFunc-sqrt 
+            (list 'calcFunc-sqrt
                   (math-sub 1 (math-sqr (nth 1 (nth 1 math-simplify-expr)))))))
       (and (eq (car-safe (nth 1 math-simplify-expr)) 'calcFunc-arccos)
-           (math-div 
+           (math-div
             1
             (nth 1 (nth 1 math-simplify-expr))))
       (and (eq (car-safe (nth 1 math-simplify-expr)) 'calcFunc-arctan)
            (list 'calcFunc-sqrt
-                 (math-add 1 
+                 (math-add 1
                            (math-sqr (nth 1 (nth 1 math-simplify-expr))))))))
 
 (math-defsimplify calcFunc-csc
       (and (eq (car-safe (nth 1 math-simplify-expr)) 'calcFunc-arcsin)
           (math-div 1 (nth 1 (nth 1 math-simplify-expr))))
       (and (eq (car-safe (nth 1 math-simplify-expr)) 'calcFunc-arccos)
-           (math-div 
+           (math-div
             1
-            (list 'calcFunc-sqrt (math-sub 1 (math-sqr 
+            (list 'calcFunc-sqrt (math-sub 1 (math-sqr
                                               (nth 1 (nth 1 math-simplify-expr)))))))
       (and (eq (car-safe (nth 1 math-simplify-expr)) 'calcFunc-arctan)
           (math-div (list 'calcFunc-sqrt
-                          (math-add 1 (math-sqr 
+                          (math-add 1 (math-sqr
                                         (nth 1 (nth 1 math-simplify-expr)))))
                      (nth 1 (nth 1 math-simplify-expr))))))
 
           (math-neg (list 'calcFunc-sinh (math-neg (nth 1 math-simplify-expr)))))
       (and (eq (car-safe (nth 1 math-simplify-expr)) 'calcFunc-arccosh)
           math-living-dangerously
-          (list 'calcFunc-sqrt 
+          (list 'calcFunc-sqrt
                  (math-sub (math-sqr (nth 1 (nth 1 math-simplify-expr))) 1)))
       (and (eq (car-safe (nth 1 math-simplify-expr)) 'calcFunc-arctanh)
           math-living-dangerously
           (list 'calcFunc-cosh (math-neg (nth 1 math-simplify-expr))))
       (and (eq (car-safe (nth 1 math-simplify-expr)) 'calcFunc-arcsinh)
           math-living-dangerously
-          (list 'calcFunc-sqrt 
+          (list 'calcFunc-sqrt
                  (math-add (math-sqr (nth 1 (nth 1 math-simplify-expr))) 1)))
       (and (eq (car-safe (nth 1 math-simplify-expr)) 'calcFunc-arctanh)
           math-living-dangerously
           (list 'calcFunc-sech (math-neg (nth 1 math-simplify-expr))))
       (and (eq (car-safe (nth 1 math-simplify-expr)) 'calcFunc-arcsinh)
           math-living-dangerously
-           (math-div 
+           (math-div
             1
-            (list 'calcFunc-sqrt 
+            (list 'calcFunc-sqrt
                   (math-add (math-sqr (nth 1 (nth 1 math-simplify-expr))) 1))))
       (and (eq (car-safe (nth 1 math-simplify-expr)) 'calcFunc-arccosh)
           math-living-dangerously
            (math-div 1 (nth 1 (nth 1 math-simplify-expr))))
       (and (eq (car-safe (nth 1 math-simplify-expr)) 'calcFunc-arccosh)
           math-living-dangerously
-           (math-div 
+           (math-div
             1
-            (list 'calcFunc-sqrt 
+            (list 'calcFunc-sqrt
                   (math-sub (math-sqr (nth 1 (nth 1 math-simplify-expr))) 1))))
       (and (eq (car-safe (nth 1 math-simplify-expr)) 'calcFunc-arctanh)
           math-living-dangerously
 
 (defun math-simplify-sqrt ()
   (or (and (eq (car-safe (nth 1 math-simplify-expr)) 'frac)
-          (math-div (list 'calcFunc-sqrt 
+          (math-div (list 'calcFunc-sqrt
                            (math-mul (nth 1 (nth 1 math-simplify-expr))
                                      (nth 2 (nth 1 math-simplify-expr))))
                     (nth 2 (nth 1 math-simplify-expr))))
             (math-mul (math-normalize (list 'calcFunc-sqrt fac))
                       (math-normalize
                        (list 'calcFunc-sqrt
-                             (math-cancel-common-factor 
+                             (math-cancel-common-factor
                                (nth 1 math-simplify-expr) fac))))))
       (and math-living-dangerously
           (or (and (eq (car-safe (nth 1 math-simplify-expr)) '-)
                        (and (eq (car-safe (nth 1 (nth 2 (nth 1 math-simplify-expr))))
                                 'calcFunc-cos)
                             (list 'calcFunc-sin
-                                  (nth 1 (nth 1 (nth 2 
+                                  (nth 1 (nth 1 (nth 2
                                                       (nth 1 math-simplify-expr))))))))
               (and (eq (car-safe (nth 1 math-simplify-expr)) '-)
                    (math-equal-int (nth 2 (nth 1 math-simplify-expr)) 1)
           (or (and (eq (car-safe (nth 1 math-simplify-expr)) '^)
                    (list '^
                          (nth 1 (nth 1 math-simplify-expr))
-                         (math-mul (nth 2 math-simplify-expr) 
+                         (math-mul (nth 2 math-simplify-expr)
                                     (nth 2 (nth 1 math-simplify-expr)))))
               (and (eq (car-safe (nth 1 math-simplify-expr)) 'calcFunc-sqrt)
                    (list '^
                          (math-div (nth 2 math-simplify-expr) 2)))
               (and (memq (car-safe (nth 1 math-simplify-expr)) '(* /))
                    (list (car (nth 1 math-simplify-expr))
-                         (list '^ (nth 1 (nth 1 math-simplify-expr)) 
+                         (list '^ (nth 1 (nth 1 math-simplify-expr))
                                 (nth 2 math-simplify-expr))
-                         (list '^ (nth 2 (nth 1 math-simplify-expr)) 
+                         (list '^ (nth 2 (nth 1 math-simplify-expr))
                                 (nth 2 math-simplify-expr))))))
       (and (math-equal-int (nth 1 math-simplify-expr) 10)
           (eq (car-safe (nth 2 math-simplify-expr)) 'calcFunc-log10)
           (math-simplify-exp (nth 2 math-simplify-expr)))
       (and (eq (car-safe (nth 1 math-simplify-expr)) 'calcFunc-exp)
           (not math-integrating)
-          (list 'calcFunc-exp (math-mul (nth 1 (nth 1 math-simplify-expr)) 
+          (list 'calcFunc-exp (math-mul (nth 1 (nth 1 math-simplify-expr))
                                          (nth 2 math-simplify-expr))))
       (and (equal (nth 1 math-simplify-expr) '(var i var-i))
           (math-imaginary-i)
           (integerp (nth 2 math-simplify-expr))
           (>= (nth 2 math-simplify-expr) 2)
           (or (and (eq (car-safe (nth 1 math-simplify-expr)) 'calcFunc-cos)
-                   (math-mul (math-pow (nth 1 math-simplify-expr) 
+                   (math-mul (math-pow (nth 1 math-simplify-expr)
                                         (- (nth 2 math-simplify-expr) 2))
                              (math-sub 1
                                        (math-sqr
                                         (list 'calcFunc-sin
                                               (nth 1 (nth 1 math-simplify-expr)))))))
               (and (eq (car-safe (nth 1 math-simplify-expr)) 'calcFunc-cosh)
-                   (math-mul (math-pow (nth 1 math-simplify-expr) 
+                   (math-mul (math-pow (nth 1 math-simplify-expr)
                                         (- (nth 2 math-simplify-expr) 2))
                              (math-add 1
                                        (math-sqr
   (or (and (math-looks-negp (nth 1 math-simplify-expr))
           (math-neg (list 'calcFunc-erf (math-neg (nth 1 math-simplify-expr)))))
       (and (eq (car-safe (nth 1 math-simplify-expr)) 'calcFunc-conj)
-          (list 'calcFunc-conj 
+          (list 'calcFunc-conj
                  (list 'calcFunc-erf (nth 1 (nth 1 math-simplify-expr)))))))
 
 (math-defsimplify calcFunc-erfc
   (or (and (math-looks-negp (nth 1 math-simplify-expr))
           (math-sub 2 (list 'calcFunc-erfc (math-neg (nth 1 math-simplify-expr)))))
       (and (eq (car-safe (nth 1 math-simplify-expr)) 'calcFunc-conj)
-          (list 'calcFunc-conj 
+          (list 'calcFunc-conj
                  (list 'calcFunc-erfc (nth 1 (nth 1 math-simplify-expr)))))))
 
 
       (car p))))
 
 ;;; If expr is of the form "a + bx + cx^2 + ...", return the list (a b c ...),
-;;; else return nil if not in polynomial form.  If "loose" (math-is-poly-loose), 
+;;; else return nil if not in polynomial form.  If "loose" (math-is-poly-loose),
 ;;; coefficients may contain x, e.g., sin(x) + cos(x) x^2 is a loose polynomial in x.
 
-;; The variables math-is-poly-degree and math-is-poly-loose are local to 
-;; math-is-polynomial, but are used by math-is-poly-rec
+;; These variables are local to math-is-polynomial, but are used by
+;; math-is-poly-rec.
 (defvar math-is-poly-degree)
 (defvar math-is-poly-loose)
+(defvar var)
 
 (defun math-is-polynomial (expr var &optional math-is-poly-degree math-is-poly-loose)
   (let* ((math-poly-base-variable (if math-is-poly-loose
                     (let ((p2 (math-is-poly-rec (nth 2 expr) negpow)))
                       (and p2
                            (or (null math-is-poly-degree)
-                               (<= (- (+ (length p1) (length p2)) 2) 
+                               (<= (- (+ (length p1) (length p2)) 2)
                                     math-is-poly-degree))
                            (math-poly-mul p1 p2))))))
             ((eq (car expr) '/)
index aead48ddc01e23fdcde41b4d46c16a7cda56ff0a..f222360ed48f254a5e7186dce7cbb8973152e302 100644 (file)
                                       (prefix-numeric-value nterms))))))
 
 
-;; The following are global variables used by math-derivative and some 
+;; The following are global variables used by math-derivative and some
 ;; related functions
 (defvar math-deriv-var)
 (defvar math-deriv-total)
                               (list 'calcFunc-sec u)))))))
 
 (put 'calcFunc-sec\' 'math-derivative-1
-     (function (lambda (u) (math-to-radians-2 
+     (function (lambda (u) (math-to-radians-2
                             (math-mul
                              (math-normalize
                               (list 'calcFunc-sec u))
                               (list 'calcFunc-tan u)))))))
 
 (put 'calcFunc-csc\' 'math-derivative-1
-     (function (lambda (u) (math-neg 
+     (function (lambda (u) (math-neg
                             (math-to-radians-2
                              (math-mul
                               (math-normalize
 ;; which are called (directly or indirectly) by math-try-integral.
 (defvar math-integ-depth)
 ;; math-integ-level is a local variable for math-try-integral, but is used
-;; by math-integral, math-do-integral, math-tracing-integral, 
-;; math-sub-integration, math-integrate-by-parts and 
-;; math-integrate-by-substitution, which are called (directly or 
+;; by math-integral, math-do-integral, math-tracing-integral,
+;; math-sub-integration, math-integrate-by-parts and
+;; math-integrate-by-substitution, which are called (directly or
 ;; indirectly) by math-try-integral.
 (defvar math-integ-level)
 ;; math-integral-limit is a local variable for calcFunc-integ, but is
-;; used by math-tracing-integral, math-sub-integration and 
-;; math-try-integration. 
+;; used by math-tracing-integral, math-sub-integration and
+;; math-try-integration.
 (defvar math-integral-limit)
 
 (defmacro math-tracing-integral (&rest parts)
 ;; used by math-sub-integration.
 (defvar math-old-integ)
 
-;; The variables math-t1, math-t2 and math-t3 are local to 
+;; The variables math-t1, math-t2 and math-t3 are local to
 ;; math-do-integral, math-try-solve-for and math-decompose-poly, but
-;; are used by functions they call (directly or indirectly); 
+;; are used by functions they call (directly or indirectly);
 ;; math-do-integral calls math-do-integral-methods;
-;; math-try-solve-for calls math-try-solve-prod, 
+;; math-try-solve-for calls math-try-solve-prod,
 ;; math-solve-find-root-term and math-solve-find-root-in-prod;
 ;; math-decompose-poly calls math-solve-poly-funny-powers and
 ;; math-solve-crunch-poly.
       (list 'calcFunc-integfailed expr)))
 
 ;; math-so-far is a local variable for math-do-integral-methods, but
-;; is used by math-integ-try-linear-substitutions and 
+;; is used by math-integ-try-linear-substitutions and
 ;; math-integ-try-substitutions.
 (defvar math-so-far)
 
 ;; math-integ-expr is a local variable for math-do-integral-methods,
-;; but is used by math-integ-try-linear-substitutions and 
+;; but is used by math-integ-try-linear-substitutions and
 ;; math-integ-try-substitutions.
 (defvar math-integ-expr)
 
                            temp (let (calc-next-why)
                                    (math-simplify-extended
                                     (math-solve-for (math-sub v temp) 0 v nil)))
-                            temp (if (and (eq (car-safe temp) '/) 
-                                          (math-zerop (nth 2 temp))) 
+                            temp (if (and (eq (car-safe temp) '/)
+                                          (math-zerop (nth 2 temp)))
                                      nil temp)))))
           (setcar (cdr math-cur-record) 'busy)))))
 
 (math-defintegral calcFunc-sec
   (and (equal u math-integ-var)
        (math-from-radians-2
-        (list 'calcFunc-ln 
+        (list 'calcFunc-ln
               (math-add
                (list 'calcFunc-sec u)
                (list 'calcFunc-tan u))))))
 (math-defintegral calcFunc-csc
   (and (equal u math-integ-var)
        (math-from-radians-2
-        (list 'calcFunc-ln 
+        (list 'calcFunc-ln
               (math-sub
                (list 'calcFunc-csc u)
                (list 'calcFunc-cot u))))))
 (defvar math-tabulate-initial nil)
 (defvar math-tabulate-function nil)
 
-;; The variables calc-low and calc-high are local to calcFunc-table, 
-;; but are used by math-scan-for-limits.
+;; These variables are local to calcFunc-table, but are used by
+;; math-scan-for-limits.
 (defvar calc-low)
 (defvar calc-high)
+(defvar var)
 
 (defun calcFunc-table (expr var &optional calc-low calc-high step)
-  (or calc-low 
+  (or calc-low
       (setq calc-low '(neg (var inf var-inf)) calc-high '(var inf var-inf)))
   (or calc-high (setq calc-high calc-low calc-low 1))
   (and (or (math-infinitep calc-low) (math-infinitep calc-high))
 
 (defvar math-solve-ranges nil)
 (defvar math-solve-sign)
-;;; Attempt to reduce math-solve-lhs = math-solve-rhs to 
+;;; Attempt to reduce math-solve-lhs = math-solve-rhs to
 ;;; math-solve-var = math-solve-rhs', where math-solve-var appears
-;;; in math-solve-lhs but not in math-solve-rhs or math-solve-rhs'; 
+;;; in math-solve-lhs but not in math-solve-rhs or math-solve-rhs';
 ;;; return math-solve-rhs'.
 ;;; Uses global values: math-solve-var, math-solve-full.
 (defvar math-solve-var)
 (defvar math-solve-full)
 
-;; The variables math-solve-lhs, math-solve-rhs and math-try-solve-sign 
-;; are local to math-try-solve-for,  but are used by math-try-solve-prod.  
-;; (math-solve-lhs and math-solve-rhs are is also local to 
+;; The variables math-solve-lhs, math-solve-rhs and math-try-solve-sign
+;; are local to math-try-solve-for,  but are used by math-try-solve-prod.
+;; (math-solve-lhs and math-solve-rhs are is also local to
 ;; math-decompose-poly, but used by math-solve-poly-funny-powers.)
 (defvar math-solve-lhs)
 (defvar math-solve-rhs)
 (defvar math-try-solve-sign)
 
-(defun math-try-solve-for 
+(defun math-try-solve-for
   (math-solve-lhs math-solve-rhs &optional math-try-solve-sign no-poly)
   (let (math-t1 math-t2 math-t3)
     (cond ((equal math-solve-lhs math-solve-var)
                (setq math-t2 (funcall math-t1 '(var SOLVEDUM SOLVEDUM)))
                (eq (math-expr-contains-count math-t2 '(var SOLVEDUM SOLVEDUM)) 1)
                (setq math-t3 (math-solve-above-dummy math-t2))
-               (setq math-t1 (math-try-solve-for 
+               (setq math-t1 (math-try-solve-for
                                (math-sub (nth 1 (nth 1 math-solve-lhs))
                                          (math-expr-subst
                                           math-t2 math-t3
                               (and math-try-solve-sign (- math-try-solve-sign))))
          ((and (not (eq math-solve-full 't)) (math-try-solve-prod)))
          ((and (not no-poly)
-               (setq math-t2 
-                      (math-decompose-poly math-solve-lhs 
+               (setq math-t2
+                      (math-decompose-poly math-solve-lhs
                                            math-solve-var 15 math-solve-rhs)))
           (setq math-t1 (cdr (nth 1 math-t2))
                 math-t1 (let ((math-solve-ranges math-solve-ranges))
                            ((= (length math-t1) 3)
                             (apply 'math-solve-quadratic (car math-t2) math-t1))
                            ((= (length math-t1) 2)
-                            (apply 'math-solve-linear 
+                            (apply 'math-solve-linear
                                     (car math-t2) math-try-solve-sign math-t1))
                            (math-solve-full
                             (math-poly-all-roots (car math-t2) math-t1))
                 ((not (math-expr-contains (nth 1 math-solve-lhs) math-solve-var))
                  (math-try-solve-for (nth 2 math-solve-lhs)
                                      (math-sub (nth 1 math-solve-lhs) math-solve-rhs)
-                                     (and math-try-solve-sign 
+                                     (and math-try-solve-sign
                                            (- math-try-solve-sign))))
                 ((not (math-expr-contains (nth 2 math-solve-lhs) math-solve-var))
                  (math-try-solve-for (nth 1 math-solve-lhs)
                                                      (nth 2 math-solve-lhs)))))
          ((eq (car math-solve-lhs) 'calcFunc-log)
           (cond ((not (math-expr-contains (nth 2 math-solve-lhs) math-solve-var))
-                 (math-try-solve-for (nth 1 math-solve-lhs) 
+                 (math-try-solve-for (nth 1 math-solve-lhs)
                                       (math-pow (nth 2 math-solve-lhs) math-solve-rhs)))
                 ((not (math-expr-contains (nth 1 math-solve-lhs) math-solve-var))
                  (math-try-solve-for (nth 2 math-solve-lhs) (math-pow
                               (and math-try-solve-sign math-t1
                                    (if (integerp math-t1)
                                        (* math-t1 math-try-solve-sign)
-                                     (funcall math-t1 math-solve-lhs 
+                                     (funcall math-t1 math-solve-lhs
                                                math-try-solve-sign)))))
          ((and (symbolp (car math-solve-lhs))
                (setq math-t1 (get (car math-solve-lhs) 'math-inverse-n))
         (cond ((not (math-expr-contains (nth 1 math-solve-lhs) math-solve-var))
                (math-try-solve-for (nth 2 math-solve-lhs)
                                    (math-div math-solve-rhs (nth 1 math-solve-lhs))
-                                   (math-solve-sign math-try-solve-sign 
+                                   (math-solve-sign math-try-solve-sign
                                                      (nth 1 math-solve-lhs))))
               ((not (math-expr-contains (nth 2 math-solve-lhs) math-solve-var))
                (math-try-solve-for (nth 1 math-solve-lhs)
                                    (math-div math-solve-rhs (nth 2 math-solve-lhs))
-                                   (math-solve-sign math-try-solve-sign 
+                                   (math-solve-sign math-try-solve-sign
                                                      (nth 2 math-solve-lhs))))
               ((Math-zerop math-solve-rhs)
                (math-solve-prod (let ((math-solve-ranges math-solve-ranges))
         (cond ((not (math-expr-contains (nth 1 math-solve-lhs) math-solve-var))
                (math-try-solve-for (nth 2 math-solve-lhs)
                                    (math-div (nth 1 math-solve-lhs) math-solve-rhs)
-                                   (math-solve-sign math-try-solve-sign 
+                                   (math-solve-sign math-try-solve-sign
                                                      (nth 1 math-solve-lhs))))
               ((not (math-expr-contains (nth 2 math-solve-lhs) math-solve-var))
                (math-try-solve-for (nth 1 math-solve-lhs)
                                    (math-mul math-solve-rhs (nth 2 math-solve-lhs))
-                                   (math-solve-sign math-try-solve-sign 
+                                   (math-solve-sign math-try-solve-sign
                                                      (nth 2 math-solve-lhs))))
               ((setq math-t1 (math-try-solve-for (math-sub (nth 1 math-solve-lhs)
                                                       (math-mul (nth 2 math-solve-lhs)
                        (math-normalize math-t2)))
                      ((math-looks-negp (nth 2 math-solve-lhs))
                       (math-try-solve-for
-                       (list '^ (nth 1 math-solve-lhs) 
+                       (list '^ (nth 1 math-solve-lhs)
                               (math-neg (nth 2 math-solve-lhs)))
                        (math-div 1 math-solve-rhs)))
                      ((and (eq math-solve-full t)
                            (Math-integerp (nth 2 math-solve-lhs))
                            (math-known-realp (nth 1 math-solve-lhs)))
                       (setq math-t1 (math-normalize
-                                (list 'calcFunc-nroot math-solve-rhs 
+                                (list 'calcFunc-nroot math-solve-rhs
                                        (nth 2 math-solve-lhs))))
                       (if (math-evenp (nth 2 math-solve-lhs))
                           (setq math-t1 (math-solve-get-sign math-t1)))
                        (nth 1 math-solve-lhs) math-t1
                        (and math-try-solve-sign
                             (math-oddp (nth 2 math-solve-lhs))
-                            (math-solve-sign math-try-solve-sign 
+                            (math-solve-sign math-try-solve-sign
                                               (nth 2 math-solve-lhs)))))
                      (t (math-try-solve-for
                          (nth 1 math-solve-lhs)
                                  (nth 2 math-solve-lhs))))
                          (and math-try-solve-sign
                               (math-oddp (nth 2 math-solve-lhs))
-                              (math-solve-sign math-try-solve-sign 
+                              (math-solve-sign math-try-solve-sign
                                                 (nth 2 math-solve-lhs)))))))))
        (t nil)))
 
     (setq math-t2 (math-mul (or math-poly-mult-powers 1)
                       (let ((calc-prefer-frac t))
                         (math-div 1 math-poly-frac-powers)))
-         math-t1 (math-is-polynomial 
+         math-t1 (math-is-polynomial
                    (math-simplify (calcFunc-expand math-t1)) math-solve-b 50))))
 
 ;;; This converts "a x^8 + b x^5 + c x^2" to "(a (x^3)^2 + b (x^3) + c) * x^2".
                        (setq math-t3 (cons scale (cdr math-t3))
                              math-t1 new-t1))))
             (setq scale (1- scale)))
-          (setq math-t3 (list (math-mul (car math-t3) math-t2) 
+          (setq math-t3 (list (math-mul (car math-t3) math-t2)
                                (math-mul count math-t2)))
           (<= (1- (length math-t1)) max-degree)))))
 
                   (and (not (equal math-solve-b math-solve-lhs))
                        (or (not (memq (car-safe math-solve-b) '(+ -))) sub-rhs)
                        (setq math-t3 '(1 0) math-t2 1
-                             math-t1 (math-is-polynomial math-solve-lhs 
+                             math-t1 (math-is-polynomial math-solve-lhs
                                                           math-solve-b 50))
                        (if (and (equal math-poly-neg-powers '(1))
                                 (memq math-poly-mult-powers '(nil 1))
                    (and (not (math-expr-contains (nth 2 x) math-solve-var))
                         (math-solve-find-root-in-prod (nth 1 x))))))))
 
-;; The variable math-solve-vars is local to math-solve-system, 
+;; The variable math-solve-vars is local to math-solve-system,
 ;; but is used by math-solve-system-rec.
 (defvar math-solve-vars)
 
                      (while (and e2
                                  (setq res2 (or (and (eq (car e2) eprev)
                                                      res2)
-                                                (math-solve-for (car e2) 0 
+                                                (math-solve-for (car e2) 0
                                                                  math-solve-system-vv
                                                                 math-solve-full))))
                        (setq eprev (car e2)
                                             solns)))
                                     (if elim
                                         s
-                                      (cons (cons 
-                                              math-solve-system-vv 
+                                      (cons (cons
+                                              math-solve-system-vv
                                               (apply 'append math-solve-system-res))
                                             s)))))
                        (not math-solve-system-res))))
                                  (lambda (r)
                                    (if math-solve-simplifying
                                        (math-simplify
-                                        (math-expr-subst 
+                                        (math-expr-subst
                                           (car x) math-solve-system-vv r))
-                                     (math-expr-subst 
+                                     (math-expr-subst
                                        (car x) math-solve-system-vv r))))
                                 (car res2)))
            x (cdr x)