*To*: mathgroup@smc.vnet.net*Subject*: [mg12041] problem with Coefficient*From*: vonessen@selway.umt.edu*Date*: Fri, 24 Apr 1998 01:52:12 -0400*Organization*: Deja News - The Leader in Internet Discussion

The Mathematica function Coefficient seemingly does not always work as it should: In[1]:=Coefficient[x^2 y^2,x^2 y^2] Out[1]=1 In[2]:=Coefficient[x1^2 x2^2,x1^2 x2^2] Out[2]=0 The first computation is correct, the second not. I made this computation on several computers using Mathematica 3.0 under Windows 95. What am I missing? Are x1 and x2 prohibited as variable names? (I hope not!) (Actually, Coefficient seems to work most of the time for polynomials in x1, x2, x3,... Other monomials which do not work are x1^2 x2 x3^2, x1^3 x2^2, x2^3 x3^2, x3^3 x4^2, x4^3 x1^2.) I'd be grateful for some help with this. Nikolaus Vonessen PS I'd appreciate replies sent directly to me (vonessen@selway.umt.edu) -----== Posted via Deja News, The Leader in Internet Discussion ==----- http://www.dejanews.com/ Now offering spam-free web-based newsreading

**Follow-Ups**:**Re: problem with Coefficient***From:*Sean Ross <seanross@worldnet.att.net>