public void Matrix_GetInverseMatrix(uint size)
{
MatrixDouble m = CreateRandomMatrix(size, size);
MatrixDouble i = m.GetInverseMatrix();
Assert.AreEqual(m.Width, i.Width);
Assert.AreEqual(m.Height, i.Height);
MatrixDouble r = m * i;
Assert.IsTrue(r.IsIdentity(1e-4));
}
public void MatrixDouble_IsIdentity()
{
MatrixDouble m = new MatrixDouble(5, 5);
Assert.IsFalse(m.IsIdentity());
m.SetIdentity();
Assert.IsTrue(m.IsIdentity());
const float epsilon = 0.1f;
m[0, 0] = 1.0 + epsilon / 2.0;
Assert.IsFalse(m.IsIdentity());
Assert.IsTrue(m.IsIdentity(epsilon));
Assert.IsTrue(m.IsIdentity((double)epsilon));
m.SetIdentity();
MatrixDouble inv = m.GetInverseMatrix();
Assert.IsTrue(inv.IsIdentity());
}
