public function testCreateVandermondeSquareMatrix(array $A, $n)
{
$A = MatrixFactory::create($A, $n);
$this->assertInstanceOf('MathPHP\\LinearAlgebra\\VandermondeSquareMatrix', $A);
$this->assertInstanceOf('MathPHP\\LinearAlgebra\\SquareMatrix', $A);
$this->assertInstanceOf('MathPHP\\LinearAlgebra\\Matrix', $A);
}