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MathGroup Archive 1999

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ReplaceAll in If Statement

  • To: mathgroup at smc.vnet.net
  • Subject: [mg19448] ReplaceAll in If Statement
  • From: "Tom Compton" <comptont at concentric.net>
  • Date: Wed, 25 Aug 1999 01:25:16 -0400
  • Organization: Concentric Internet Services
  • Sender: owner-wri-mathgroup at wolfram.com

In the following sequence I expected z to evaluate to 1 in the
Module.  It appears that the test in the module does not
evaluate to either True or False.  I don't understand why.
Can anyone explain?

In[1]:=
opList={a->True};

In[2]:=
test[opts___]:=Module[{},
If[a /. {opts}, z=1, z=2, z=3];
{a, z} /. {opts}]

In[3]:=
test[opList]
Out[3]=
{{True,3}}



Tom Compton




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