>> Are you 
>> basically saying that variables are write-once in Haskell?
> 
> AFAIK, yes, since they're defined as immutable.
> 
> In other words, Haskell doesn't have variables, only constants.

Well, depending on how you define "variable" and "constant".

Take this for example:   double x = 2*x

Every time you call this function, "x" can have a different value. It is 
a "variable". However, DURING EACH INVOCATION, "x" can only have one 
value. It is a "constant".

-- 
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*

Post a reply to this message