public void Then_inverse(string id, int rows, int cols, DataTable dataTable)
{
var expectedId = $"inverse({id})";
Given_matrix(expectedId, dataTable);
Assert.True(cache[expectedId].Equals(MatrixOperations.Invert(cache[id], MatrixOperation.Cofactor)));
Assert.True(cache[expectedId].Equals(MatrixOperations.Invert(cache[id], MatrixOperation.Gauss)));
cache.Remove(expectedId);
}
public void Then_matrix_inverse_multiply(string c, string b, string a)
{
// Invert using Cofactor
{
var actualResult = MatrixOperations.Multiply(cache[c],
MatrixOperations.Invert(cache[b], MatrixOperation.Cofactor));
Assert.True(cache[a].Equals(actualResult));
}
// Invert using Gauss
{
var actualResult = MatrixOperations.Multiply(cache[c],
MatrixOperations.Invert(cache[b], MatrixOperation.Gauss));
Assert.True(cache[a].Equals(actualResult));
}
}
public void MatrixInvertTest1()
{
var a = MatrixOperations.FromArray(4, 4, new double[]{
-2, -8, 3, 5,
-3, 1, 7, 3,
1, 2, -9, 6,
-6, 7, 7, -9
});
var a11 = MatrixOperations.Invert(a, MatrixOperation.Gauss);
var a12 = MatrixOperations.Invert(a, MatrixOperation.Cofactor);
var r1 = MatrixOperations.Multiply(a, a11);
var r2 = MatrixOperations.Multiply(a, a12);
var i = MatrixOperations.Identity(4);
Assert.True(a11.Equals(a12));
Assert.True(i.Equals(r1));
Assert.True(i.Equals(r2));
output.WriteLine(a11.ToString());
}
public void Then_assing_matrix_inverse(string b, string a)
{
cache[b] = MatrixOperations.Invert(cache[a], MatrixOperation.Cofactor);
}
public void Given_inverse(string b, string id)
{
cache.Add(b, MatrixOperations.Invert(cache[id]));
}