public function testIdentityMatrix()
{
$expected = array(array(1.0, 0.0, 0.0), array(0.0, 1.0, 0.0), array(0.0, 0.0, 1.0));
$this->assertEquals($expected, MatrixFactory::identityMatrix(3)->getArray());
//
$expected = array(array(1.0, 0.0, 0.0), array(0.0, 1.0, 0.0));
$this->assertEquals($expected, MatrixFactory::identityMatrix(2, 3)->getArray());
}
public function testIsMatrix()
{
$matrix = MatrixFactory::identityMatrix(3);
$this->assertTrue(Matrix::isMatrix($matrix));
$not_matrix = array(1, 2, 3);
$this->assertTrue(!Matrix::isMatrix($not_matrix));
$not_matrix = new stdClass();
$this->assertTrue(!Matrix::isMatrix($not_matrix));
}
public function testDiv()
{
$a = $this->B;
$this->assertEquals(MatrixFactory::identityMatrix(2)->getArray(), $a->div($a)->getArray());
}
