Posted by Joel on September 10, 2002 at 00:51:44:
In Reply to: Re: Quadratics posted by Joel on September 09, 2002 at 22:21:15:
Is a Sum itself a "function"
so that:
f(n) = Sum[from n=1 to n]n
by itself would be correctly considered a function that defines the series {1,3,6,10,15...} ?