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| author | Miles Bader <miles@gnu.org> | 2007-07-09 08:00:55 +0000 |
|---|---|---|
| committer | Miles Bader <miles@gnu.org> | 2007-07-09 08:00:55 +0000 |
| commit | 1011c48763982d02797a7058556d29f639f6efca (patch) | |
| tree | 5f1b7529b4cc483b73475b89245633c5848b8a5e /lisp/calc/calc-poly.el | |
| parent | 6f06dac7b57b8d73f4b26a855cd9862630192029 (diff) | |
| parent | 69e4c7c4bacf19e9e004605fcb1c067e478beffe (diff) | |
| download | emacs-1011c48763982d02797a7058556d29f639f6efca.tar.gz | |
Merge from emacs--devo--0
Patches applied:
* emacs--devo--0 (patch 803-805)
- Update from CVS
Revision: emacs@sv.gnu.org/emacs--unicode--0--patch-227
Diffstat (limited to 'lisp/calc/calc-poly.el')
| -rw-r--r-- | lisp/calc/calc-poly.el | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lisp/calc/calc-poly.el b/lisp/calc/calc-poly.el index 0bcf78af861..23000888749 100644 --- a/lisp/calc/calc-poly.el +++ b/lisp/calc/calc-poly.el @@ -982,10 +982,16 @@ (defun math-padded-polynomial (expr var deg) + "Return a polynomial as list of coefficients. +If EXPR is of the form \"a + bx + cx^2 + ...\" in the variable VAR, return +the list (a b c ...) with at least DEG elements, else return NIL." (let ((p (math-is-polynomial expr var deg))) (append p (make-list (- deg (length p)) 0)))) (defun math-partial-fractions (r den var) + "Return R divided by DEN expressed in partial fractions of VAR. +All whole factors of DEN have already been split off from R. +If no partial fraction representation can be found, return nil." (let* ((fden (calcFunc-factors den var)) (tdeg (math-polynomial-p den var)) (fp fden) |