PermutationMatrix.is_unitary

static PermutationMatrix.is_unitary(U, tol=1e-08)

Check if U is a unitary matrix.

Parameters:

• U (Any) – The matrix to check.

• tol (float) – The numerical precision of the check.

Returns:

True if U is a unitary.

Return type:

TypeGuard[UnitaryMatrix | complex128 | complex64 | int64 | int32 | float64 | float32 | Sequence[Sequence[int | float | complex]]]