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Topic: What is Difference between (X^Y)^Z and X^Y^Z
Replies: 9   Last Post: Jun 27, 1996 8:37 PM

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Daniel A. Asimov

Posts: 101
Registered: 12/3/04
Re: What is Difference between (X^Y)^Z and X^Y^Z
Posted: Jun 25, 1996 9:01 PM
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In article <4qppbr$ns6@tribune.concentric.net> it was written:
>What is the mistake here:
>
> Z Y
> Y Y*Z Z
>X = X = X

---------------------------------------------------------------

The mistake is writing a non-associative operation (exponentiation)
without parentheses, which leaves the meaning ambiguous.


Z Y
Y Z
If X really means (X^Y)^Z, and X really means (X^Z)^Y, then there is no
mathematical error in these equations, only notational error.

--Dan Asimov







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