public function testPackedArray2() { $data = [1.0, 2.0, 3.0, 4.0]; $matrix = new Matrix(1, 4); $matrix->fromPackedArray($data, 0); $this->assertEquals(1.0, $matrix->get(0, 0)); $this->assertEquals(2.0, $matrix->get(0, 1)); $this->assertEquals(3.0, $matrix->get(0, 2)); }