Outdated egg!

This is an egg for CHICKEN 3, the unsupported old release. You're almost certainly looking for the CHICKEN 4 version of this egg, if it exists.

If it does not exist, there may be equivalent functionality provided by another egg; have a look at the egg index. Otherwise, please consider porting this egg to the current version of CHICKEN.

matpak

Introduction

matpak is a Scheme library which produces the following functions for matrix/vector manipulation:

The matpak egg is a packaging of the original source code written by Norman Hardy.

Examples

 

(use matpak)
; matrix transpose
(mat-transpose '( (1 2) (3 4) ) )  ==> ((1 3) (2 4))
; matrix inverse
(mat-inverse b cc) ; supply the exit continuation
; matrix multiply
(define a '((0 2 4 5) (3 4 5 -2) (7 6 5 3) (4 6 5 7)))
(define b (mat-inverse a cc))
(mat-mult a b) ==> ((1 0 0 0) (0 1 0 0) (0 0 1 0) (0 0 0 1))
; matrix determinant
(mat-determinant b)
; vector inner product
(mat-inner-product '(2 4) '(5 10))  ==> 50

Authors

matpak was authored entirely by Norm Howard - http://www.cap-lore.com/MathPhys/Field/. It was packaged into an egg by Terrence Brannon

License

BSD

Requirements

Depends on the numbers extension.

Version History