RE: [Axiom-developer] [Q] Function for testing for a part of the output?

[Page, Bill]

On Thursday,  February 10, 2005 2:36 PM Vladimir Bondarenko asked:
> 
> Say, I have  D(sin(z)^2, z) and the output is  2cos(z)sin(z)
> 
> What is the easiest way to see, if the output has sin(z) ?
> Say, something like
> 
> -> present?(sin(z), D(sin(z)^2, z))
> true
>

How about:

   member?(cos(z),kernels(D(sin(z)^2,z)))

Regards,
Bill Page.