Re: PolynomialQ ?
- To: mathgroup at smc.vnet.net
- Subject: [mg34886] Re: PolynomialQ ?
- From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
- Date: Wed, 12 Jun 2002 02:15:12 -0400 (EDT)
- Organization: Universitaet Leipzig
- References: <ae4en8$9bc$1@smc.vnet.net>
- Reply-to: kuska at informatik.uni-leipzig.de
- Sender: owner-wri-mathgroup at wolfram.com
Hi, you should using FreeQ[] to check if a symbol is in an expression. Regards Jens Juan wrote: > > Hi,I tried to check is a polynomial have a variable, ussing the function > PolynomialQ. > > In[1]:=p = x^3 - 2*x^2 + x - 1; > In[2]:=PolynomialQ[p, x] > Out[2]=True > In[3]:=PolynomialQ[p, y] > Out[3]=True > In[4]:=PolynomialQ[p, z^2] > Out[4]=True > In[5]:=PolynomialQ[p, {u, v}] > Out[5]=True > > What is the thing I am doing wrong? > > Regards.Juan > > _________________________________________________________________ > Descargue GRATUITAMENTE MSN Explorer en > http://explorer.yupimsn.com/intl.asp.