Re: Problem Replacing part of NonCommutativeMultiply expresions
- To: mathgroup at smc.vnet.net
- Subject: [mg104517] Re: Problem Replacing part of NonCommutativeMultiply expresions
- From: Szabolcs Horvát <szhorvat at gmail.com>
- Date: Tue, 3 Nov 2009 02:51:51 -0500 (EST)
- References: <hcl3s1$bvc$1@smc.vnet.net>
On 2009.11.01. 23:59, Iv=E1n Lazaro wrote: > Dear all, > > I'm working with a huge amount (2000) of terms of this tipe: > g**a**p**r**e**r**e > > But a lot of them are cero. The problem is that i'm not able to set > r**e**r**e->0 in such expresions. If I do g**a**p**r**e**r**e/.r**e**r**e->0 > nothing happens. > This works for me: In[1]:= g ** a ** p ** r ** e ** r ** e /. r ** e ** r ** e -> 0 Out[1]= g ** a ** p ** 0 It would not work if NonCommutativeMultiply didn't have the Flat attribute. Did you remove this attribute?