using System; using System.Collections.Generic; using System.Linq; using System.Text; using L = Science.Mathematics.LinearAlgebra; namespace Strang3Ed.Chapter05.Section2 { public class Example07 { public Example07() { } private string result; public string Result { get { return result; } } public void Compute() { double[,] x = {{1.0,-1.0,0.0,0.0,0.0}, {-1.0,2.0,-1.0,0.0,0.0}, {0.0,-1.0,2.0,-1.0,0.0}, {0.0,0.0,-1.0,2.0,-1.0}, {0.0,0.0,0.0,-1.0,2.0}}; L.Matrix A = new L.Matrix(x); result += A.Determinant.ToString() + " "; L.Cofactor C00 = new L.Cofactor(A, 0, 0); L.Cofactor C01 = new L.Cofactor(A, 0, 1); double d = 1.0 * C00.Determinant + (-1.0) * C01.Determinant; result += d.ToString(); } } } /* 1 1 */