MCordingley\LinearAlgebraTest\MatrixTest::testEntrywise PHP Method

    public function testEntrywise()
    {
        $matrix1 = new Matrix([[1, 2, 3], [4, 5, 6], [7, 8, 9]]);
        $matrix2 = $matrix1->transpose();
        static::assertEquals([[1, 8, 21], [8, 25, 48], [21, 48, 81]], $matrix1->entrywise($matrix2)->toArray());
    }