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Re: Replacement question



Hi Brian,

this works, but what is matched is the FullForm and not what you see. 

Therefore, look at your expression using FullForm.

Daniel





Brian Beckage wrote:

> I apologize for this very basic question.  I understand how to use /. 

> {} to replace a  variable with a more complex expression, e.g., x-> 

> y+z.  Can one move in the opposite direction to replace all 

> occurrences of y+z with x?   myExpression/.{y+z->x} does not seem to 

> work.

> 

> Thank you for your help,

> Brian

> 

> 

> 




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