MathGroup Archive 2002

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How To Change A Rule

  • To: mathgroup at
  • Subject: [mg32339] How To Change A Rule
  • From: Ariel Fligler <ariel.fligler at>
  • Date: Wed, 16 Jan 2002 03:29:45 -0500 (EST)
  • Sender: owner-wri-mathgroup at


I'm quite newby to Mathematica programming and will thank you if you could
help me solve the following:

I have a list of rules of the form:
{s1->-11, s2->12}
And would like to change every rule in the list that it's right hand side is
negative to 0 so that I will get:
{s1->0, s2->12}

I tried to find an access function to manipulate rules but could not.

Any help will be greatly appreciated.



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