Unitary matrix
= Unitary matrix
{wiki}
A complex matrix is unitary when $U^\dagger U=UU^\dagger=I$. Its columns form an orthonormal basis, and it preserves inner products and norms.
= Unitary matrix
{wiki}
A complex matrix is unitary when $U^\dagger U=UU^\dagger=I$. Its columns form an orthonormal basis, and it preserves inner products and norms.