Re: How to Extract Conditional Expression?

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• Subject: [mg127586] Re: How to Extract Conditional Expression?
• From: "djmpark" <djmpark at comcast.net>
• Date: Sun, 5 Aug 2012 14:57:33 -0400 (EDT)
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```That can't have been the actual expression you obtained from Mathematica. If
it was like the following you could use:

x -> ConditionalExpression[#1^2 + 3 #1 + 2 C[1] &,   C[1] \[Element]
Integers]
% /. C[1] -> 3
f[x_] = x[y] /. % /. y -> x

The other problem here is that you are trying to use x as a function name
(like f) and also as the argument. You should have used f as the symbol in
the statement that produced the ConditionalExpression in the first place -
if that was indeed the expression you obtained.

You should be able to copy the expression into the posting using the context

David Park
djmpark at comcast.net
http://home.comcast.net/~djmpark/index.html

From: ScottG [mailto:sbg at acw.com]

I have ...

x -> ConditionalExpression[#1^2 + 3 #1 + 2 C[1],   C[1] in Integers]

and I want

f[x_] = x^2 + 3 x + 6

How do I get there other than cut-and-paste?

Thanks for any insight.

Cheers, Scott

```

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