def _condition_3_13(A_1_norm, n0, m_max, ell):
 p_max = _compute_p_max(m_max)
 a = (((2 * ell) * p_max) * (p_max + 3))
 b = (_theta[m_max] / float((n0 * m_max)))
 return (A_1_norm <= (a * b))

def _condition_3_13 ( A_1_norm , n0 , m_max , ell ) : p_max = _compute_p_max ( m_max ) a = ( ( ( 2 * ell ) * p_max ) * ( p_max + 3 ) ) b = ( _theta [ m_max ] / float ( ( n0 * m_max ) ) ) return ( A_1_norm <= ( a * b ) )
a helper function for the _expm_multiply_* functions .