public function testMinorMatrix(array $A, int $mᵢ, int $nⱼ, array $Mᵢⱼ) { $A = MatrixFactory::create($A); $Mᵢⱼ = MatrixFactory::create($Mᵢⱼ); $this->assertEquals($Mᵢⱼ, $A->minorMatrix($mᵢ, $nⱼ)); }