IFTE odd behaviour

[Wes Loewer]

(10-12-2019 11:00 AM)Wes Loewer Wrote:  Should {1,2}+{3,4,5} return {4,6} or error?

Here's an interesting twist. In CAS
{1,2}+{10,20,30} --> {11,22,30} // assumes missing elements are zero
but
{1,2}*{10,20,30} --> {10,40} // uses only first two elements