>> umfpack_simple
  umfpack_simple:  a simple demo of UMFPACK
 
  UMFPACK Version 4.4, Copyright (c) 2005 by Timothy A. Davis.
  All Rights Reserved.  Type umfpack_details for License.
 
  UMFPACK License:
 
      Your use or distribution of UMFPACK or any modified version of
      UMFPACK implies that you agree to this License.
 
      THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY
      EXPRESSED OR IMPLIED.  ANY USE IS AT YOUR OWN RISK.
 
      Permission is hereby granted to use or copy this program, provided
      that the Copyright, this License, and the Availability of the original
      version is retained on all copies.  User documentation of any code that
      uses UMFPACK or any modified version of UMFPACK code must cite the
      Copyright, this License, the Availability note, and "Used by permission."
      Permission to modify the code and to distribute modified code is granted,
      provided the Copyright, this License, and the Availability note are
      retained, and a notice that the code was modified is included.  This
      software was developed with support from the National Science Foundation,
      and is provided to you free of charge.
 
  Availability: http://www.cise.ufl.edu/research/sparse/umfpack
 
  See also: umfpack, umfpack_details



Hit enter to agree to the above License: 

A =

     2     3     0     0     0
     3     0     4     0     6
     0    -1    -3     2     0
     0     0     1     0     0
     0     4     2     0     1


b =

     8
    45
    -3
     3
    19

Solution to Ax=b via UMFPACK:
x1 = umfpack (A, '\', b)

x1 =

    1.0000
    2.0000
    3.0000
    4.0000
    5.0000

Solution to Ax=b via MATLAB:
x2 = A\b

x2 =

    1.0000
    2.0000
    3.0000
    4.0000
    5.0000

norm (x1-x2) should be small: 1.28037e-15
Type 'umfpack_demo' for a full demo of UMFPACK
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