Am 31.01.2018 um 14:50 schrieb Artur Tarassow: Not really -- there is a users list thread "element-wise matrix operator .<" from more than five years ago (2012). And guess who started it -- ? You did. In that thread Allin explained in passing, however, that the check M < 1 (for a matrix M) tests whether _all_ elements of the matrix are < 1. So indeed the behavior is intended, let's see if I can remember that one. thanks, sven