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Topic: Replacement
Replies: 4   Last Post: Jul 20, 1996 1:55 AM

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Sergej Gerassimov

Posts: 1
Registered: 12/11/04
Posted: Jul 17, 1996 1:40 AM
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I have something like


and I'd like to substitute Sqrt[a^2+b^2] by r.

x/Sqrt[a^2+b^2]+Sqrt[a^2+b^2]/y //. Sqrt[a^2+b^2]->r

x r
------------- + -
Sqrt[a^2+b^2] y

(replace one only in the numerator)
How to replace Sqrt[a^2+b^2] by r everywhere in the expression?


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