BUG[?]: ΣLIST, ΠLIST with verrrry short lists

[chromos]

(12-24-2015 03:08 AM)Claudio L. Wrote:  ... The first case is not a bug. Sum of an empty list is not defined, as the list could contain things other than numbers. Think of a list of strings, where the sum would concatenate them. In that case, an empty list should mean an empty string ""...

In the second case, I agree the product of a 1-value list should be that value. An empty list is again a gray area. I think undefined answer is better than an arbitrary number 1.

You are right. I was thinkink about numbers only which was my mistake.