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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
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