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MathGroup Archive 1998

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Re: fractional simplification

Pierre MARTINEU wrote:
> We didn't manage to simplify the symbolic expression : "a . b/a" under
> Mathematica 2.2.
> We've tried using different functions like 'simplify' ...without success
> !
> Is it normal ?
> Do you have any solutions to solve this problem ?


Could you explain what you want the answer to be please?

a.b/a is interpreted as Dot[a, b]/a, where Dot is the vector inner
product, not Times[a,b]/a.

For explicit vectors we get 


 a1 b1 + a2 b2  a1 b1 + a2 b2
{-------------, -------------}
      a1             a2

You may want



We will probably havw to write a rule.

Allan Hayes
Training and Consulting
Leicester, UK
voice: +44 (0)116 271 4198
fax: +44 (0)116 271 8642

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