% Linear Algebra: Theory and Applications
% Ward Cheney & David Kincaid
% JBPub.com (c) 2008 
% File: exp4113.m
% Example 4.1.13 Mathematica Software

A = [1,3,7,2;4,-2,1,5;3,1,2,0;1,9,15,-1]
det(A)