---
name: "matinv"
section: "3m"
platform: "linux"
package: "iraf"
version: "2.11.3-2"
release: "Debian 3.0 (Woody)"
platforms: ["linux"]
url: "https://new.carta.tech/matinv"
---

# matinv(3m)

## NAME

matinv

## 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