concat in CAS

[Han]

(11-16-2014 06:59 AM)parisse Wrote:  concat takes 2 arguments. If it has more than 2 args, it returns the arguments. That's indeed not very useful, perhaps we can change this and concat all the arguments.

That's interesting -- returning the arguments is actually the same result as putting them all into a list delimited by []'s because of how the CAS interprets values separated by commas.

I think having it match the Home behavior is probably best (and what is most expected). The help screen would need to be modified since I think most people expect

CONCAT({1,2},3,{4,5})

to produce a single list containing {1,2,3,4,5} and not {{1,2},3,{4,5}} as suggested by the help text.