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authorSteve Langasek <vorlon@debian.org>2005-01-10 08:53:33 +0000
committerBryan Newbold <bnewbold@robocracy.org>2017-02-20 00:05:30 -0800
commite33f9eb9cf5cc29c36ce2aa7e10cd0f37ae0cc8e (patch)
treeabbf06041619e445f9d0b772b0d58132009d8234 /determ.txi
parentf559c149c83da84d0b1c285f0298c84aec564af9 (diff)
parent8466d8cfa486fb30d1755c4261b781135083787b (diff)
downloadslib-e33f9eb9cf5cc29c36ce2aa7e10cd0f37ae0cc8e.tar.gz
slib-e33f9eb9cf5cc29c36ce2aa7e10cd0f37ae0cc8e.zip
Import Debian changes 3a1-4.2debian/3a1-4.2
slib (3a1-4.2) unstable; urgency=low * Non-maintainer upload. * Add guile.init.local for use within the build dir, since otherwise we have an (earlier unnoticed) circular build-dep due to a difference between scm and guile. slib (3a1-4.1) unstable; urgency=low * Non-maintainer upload. * Build-depend on guile-1.6 instead of scm, since the new version of scm is wedged in unstable (closes: #281809). slib (3a1-4) unstable; urgency=low * Also check for expected creation on slibcat. (Closes: #240096) slib (3a1-3) unstable; urgency=low * Also check for /usr/share/guile/1.6/slib before installing for guile 1.6. (Closes: #239267) slib (3a1-2) unstable; urgency=low * Add format.scm back into slib until gnucash stops using it. * Call guile-1.6 new-catalog (Closes: #238231) slib (3a1-1) unstable; urgency=low * New upstream release * Remove Info section from doc-base file (Closes: #186950) * Remove period from end of description (linda, lintian) * html gen fixed upstream (Closes: #111778) slib (2d4-2) unstable; urgency=low * Fix url for upstream source (Closes: #144981) * Fix typo in slib.texi (enquque->enqueue) (Closes: #147475) * Add build depends. slib (2d4-1) unstable; urgency=low * New upstream. slib (2d3-1) unstable; urgency=low * New upstream. * Remove texi2html call in debian/rules. Now done upstream. Add make html instead. * Changes to rules and doc-base to conform to upstream html gen * Clean up upstream makefile to make sure it cleans up after itself.
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+@code{(require 'determinant)}
+@ftindex determinant
+
+@noindent
+A Matrix can be either a list of lists (rows) or an array.
+As with linear-algebra texts, this package uses 1-based coordinates.
+
+
+@defun matrix->lists matrix
+
+Returns the list-of-lists form of @var{matrix}.
+@end defun
+
+@defun matrix->array matrix
+
+Returns the (ones-based) array form of @var{matrix}.
+@end defun
+
+@defun determinant matrix
+
+@var{matrix} must be a square matrix.
+@code{determinant} returns the determinant of @var{matrix}.
+
+@example
+(require 'determinant)
+(determinant '((1 2) (3 4))) @result{} -2
+(determinant '((1 2 3) (4 5 6) (7 8 9))) @result{} 0
+@end example
+@end defun
+
+@defun transpose matrix
+
+Returns a copy of @var{matrix} flipped over the diagonal containing the 1,1
+element.
+@end defun
+
+@defun matrix:product m1 m2
+
+Returns the product of matrices @var{m1} and @var{m2}.
+@end defun
+
+@defun matrix:inverse matrix
+
+@var{matrix} must be a square matrix.
+If @var{matrix} is singlar, then @code{matrix:inverse} returns #f; otherwise @code{matrix:inverse} returns the
+@code{matrix:product} inverse of @var{matrix}.
+@end defun