Re: what's wrong?!!
- To: mathgroup at smc.vnet.net
- Subject: [mg115682] Re: what's wrong?!!
- From: Daniel Lichtblau <danl at wolfram.com>
- Date: Tue, 18 Jan 2011 05:50:20 -0500 (EST)
olfa wrote:
> Hi Mathematica community,
>
> I try to use Case[exp,patt,Infinity]
>
> for the first example it works:
> Cases[iP == i + v && kaP == 3^v, iP == _ | kaP == _, Infinity]
> the output is {iP == i + v, kaP == 3^v}
>
> but not for the second one!!
> Cases[yP == y + x - z, yP == _, Infinity]
> the output is {}
>
> why?!!
>
> Thank you.
See
http://forums.wolfram.com/mathgroup/archive/2010/Dec/msg00003.html
and related responses. Upshot: replace Infinity with {0}.
Daniel Lichtblau
Wolfram Research