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MathGroup Archive 1998

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Re: My own sum



Thomas Lemm wrote:
> 
> I want to implement another type of Sum to treat expressions in a
> "physical" manner. But I need to know how Mathematica tackles the
> Problem:
> 
> Sum[F[x],{x,-a,a}]==Sum[F[y],{y,-a,a}]
> 
Thomas,
In[1]:=
Sum[F[x],{x,-a,a}]==Sum[F[y],{y,-a,a}]

Out[1]=
Sum[F[x], {x, -a, a}] == Sum[F[y], {y, -a, a}]

Mathematica stops at the syntactical level.

We need to buid in some way of making the syntactical forms to sam

In[15]:=
%/.x|y->xy

Out[15]=
True

But we need to avoid variabel clashes and deal with depndencies amongst
the summation variables.
-- 
Allan Hayes
Mathematica Training and Consulting
Leicester, UK
hay@haystack.demon.co.uk
http://www.haystack.demon.co.uk
voice: +44 (0)116 271 4198
fax: +44 (0)116 271 8642



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