Re: [Bug-glpk] 0 ** 0; result undefined

[Andrew Makhorin]

> "0 ** 0; result undefined "

> Result of 0 ** 0 is defined, it #39;s 1. That #39;s all.
 
In the strong mathematical sense 0 ** 0 is undefined. Defining 0 ** 0
as 1 violates continuity and sometimes may lead to false conclusions.

Nevertheless, if you disagree with that, you can always check operands
to produce desirable result, for example:

param a := (if x = 0 and y = 0 then 1 else x ** y);