id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc
427	Operations with unknown values don`t return unknown values	César Pérez Álvarez	Víctor de Buen Remiro	"Hi!

If we try these lines of code:

Matrix a = Col(?,1,9);
Matrix b = Col(10,9,1);

Matrix c1 = Tra(a)*b;
//Matrix c2 = a+b;
//Matrix c3 = a-b;
Matrix c4 = Min(a, b);
Matrix c5 = Max(a, b);

We can see that c1 is a 1x1 matrix with value 18 (* operates with unknown value like a zero value). In c4 and c5, operations with unknowns don't return unknowns.
I don't know if exist another functions with this problem."	defect	closed	highest		Math	head	blocker	fixed