colour.algebra.matrix Module¶

Matrix Helpers¶

Defines matrices computation helpers objects.

colour.algebra.matrix.is_identity(x, n=3)[source]¶

Returns if given array_like variable \(x\) is an identity matrix.

Parameters:	x (array_like, (N)) – Variable \(x\) to test. n (int, optional) – Matrix dimension.
Returns:	Is identity matrix.
Return type:	bool

Examples

>>> is_identity(np.array([1, 0, 0, 0, 1, 0, 0, 0, 1]).reshape(3, 3))
True
>>> is_identity(np.array([1, 2, 0, 0, 1, 0, 0, 0, 1]).reshape(3, 3))
False