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Re: PolynomialQ ?


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
> 
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