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small problem.

• To: mathgroup at smc.vnet.net
• Subject: [mg12852] small problem.
• From: phpcp <phpcp at csv.warwick.ac.uk>
• Date: Wed, 17 Jun 1998 00:27:55 -0400
• Organization: University of Warwick, UK
• Sender: owner-wri-mathgroup at wolfram.com

Hi!

I want to choose a definition of a function by the vlaues of its
argument. So I can use :

a0[t_] := t^2 - t^3/5./;t<0.001;a0[t_] := t^2/;t>=0.001

This works fine. But if the function definition (or form or whatever) is
a bit more complicated as follows :

solution = Solve[s0^4 + s0 t + 1 == 0,s0]; chi0[x_] :=
x/;x<0.01;chi0[x_] := (solution[[3,1,2]]/.t -> x)/;x>=0.01

It doesnt work. Any ideas?

thanks in advance,
Sanjay.

• Follow-Ups:
  • Re: small problem.
    • From: Sean Ross <seanross@worldnet.att.net>