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RE: Is mathematica able to transform formula


In[1]:=
Clear[a, b, c, f]
Eliminate[{f == a*b + 5 && c == a*b}, {a, b}]
Out[1]:=
-5 + f == c

Or, if you prefer:

In[2]:=
Clear[a, b, c, f]
Solve[{f == a*b + 5 && c == a*b}, f, {a, b}]
Out[2]:=
{{f -> 5 + c}}

Mark Harder



> -----Original Message-----
> From: ajikoe at gmail.com [mailto:ajikoe at gmail.com]
> Sent: Friday, December 01, 2006 3:22 AM
> To: mathgroup at smc.vnet.net
> Subject: [mg71864] Is mathematica able to transform formula
> 
> Hello,
> 
> I have a question:
> if I have a symbolic expression:
> f  = a * b + 5
> c = a * b
> 
> Can Mathematica builds f = c + 5 for me ?
> 
> 
> Sincerely Yours,
> pujo
> 



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