def idd_diffsnorm(m, n, matvect, matvect2, matvec, matvec2, its=20):
 return _id.idd_diffsnorm(m, n, matvect, matvect2, matvec, matvec2, its)

def idd_diffsnorm ( m , n , matvect , matvect2 , matvec , matvec2 , its = 20 ) : return _id . idd_diffsnorm ( m , n , matvect , matvect2 , matvec , matvec2 , its )
estimate spectral norm of the difference of two real matrices by the randomized power method .