.TH MATINV 3M
.SH NAME
matinv
.SH DESCRIPTION
subroutine matinv.f 

source
  Bevington, pages 302-303.

purpose
  invert a symmetric matrix and calculate its determinant

usage 
  call matinv (array, norder, det)

description of parameters
  array  - input matrix which is replaced by its inverse
  norder - degree of matrix (order of determinant)
  det    - determinant of input matrix

subroutines and function subprograms required 
  none

comments
  valid for norder up to 10