public function dataProviderForScalarMultiply()
{
return [[[], 2, []], [[1], 2, [2]], [[2, 3], 2, [4, 6]], [[1, 2, 3], 2, [2, 4, 6]], [[1, 2, 3, 4, 5], 5, [5, 10, 15, 20, 25]], [[1, 2, 3, 4, 5], 0, [0, 0, 0, 0, 0]], [[1, 2, 3, 4, 5], -2, [-2, -4, -6, -8, -10]], [[1, 2, 3, 4, 5], 0.2, [0.2, 0.4, 0.6, 0.8, 1]]];
}