Bug with CONCAT

[Helge Gabert]

I've come across a problem with CONCAT and two arguments (firmware 5447).

Try CONCAT(5,6) returns 0. ???

CONCAT(5,6,7) returns [ 5 6 7 ], as it should.

In a program, for now, one can get around this problem with defining a list first, e.g.,

l:= {}

l:=CONCAT(l,5);

l:=CONCAT(l,6);

RETURN (l); returns the list {5, 6}.

I thought I should mention this because I got unexpected results in my program, and was finally able to trace it - - I called RETURN(CONCAT(v1,v2)) and obtained 0.

Also CAS programs really should be debuggable (just like PPL programs) - - why is the DEBUG soft key missing for CAS programs in the editor?