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Question: substitute a single variable for a particular expression in a larger expression

Question:substitute a single variable for a particular expression in a larger expression

Mclendo06 12 Maple
February 16 2008
0

I have a number of expressions.  An example is:

 

-1/3*(xjm1^2-2*xj*xjm1+xj^2+3)/(xjm1-xj)

 

I would like to substitue the expression h=xj-xjm1, which in this case would result in

 

1/h+2*h/6.

 

Does anyone know how I can make this sort of substitution in Maple automatically?
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