Bug with CONCAT

[Michael de Estrada]

(01-02-2014 07:51 PM)Mark Hardman Wrote:  I wonder if this is a case of xcas attempting to parse the argument (5,6) as an imaginary number.

There was a thread in the old forums with a similar issue. I've searched and could not find a link.

Mark Hardman

I don't think so, since it would not recognize it as such w/o a second set of parentheses. Also, I think you meant to say complex number. For example:

CONCAT(1,2) --> 0

but,

CONCAT((1,2)) --> CONCAT((1,2))
CONCAT(1+2*i) --> CONCAT(1+2*i)

because it can't further combine a complex number into itself

however,

CONCAT((1,2),(3,4)) --> 0
CONCAT(1+2*i,3+4*i) --> 0

but,

CONCAT((1,2),(3,4),(5,6)) --> [(1,2),(3,4),(5,6)]
CONCAT(1+2*i,3+4*i,5+6*i) --> [1+2*i,3+4*i,5+6*i]