Re: My own sum
- To: mathgroup@smc.vnet.net
- Subject: [mg11044] Re: My own sum
- From: Allan Hayes <hay@haystack.demon.co.uk>
- Date: Wed, 18 Feb 1998 20:31:44 -0500
- References: <6cakf2$fac@smc.vnet.net>
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