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From: pete@borland.com (Pete Becker)
Newsgroups: comp.lang.c++
Subject: Re: taking powers with "^"
Message-ID: <1991Jun22.181859.6798@borland.com>
Date: 22 Jun 91 18:18:59 GMT
References: <1920003@hpsad.HP.COM>
Organization: Borland International
Lines: 11

In article <1920003@hpsad.HP.COM> sdw@hpsad.HP.COM (Steve Warwick) writes:
>when ATT built the complex class, C++ became my favourite language for numerical processing and analysis. however, I'm still looking for one little friend,
>the power symbol  "^" as in 10^5, x^y. Can/Has someone defined a set of 
>friend functions for integer/double/complex numbers ?

	I haven't looked, but there's a danger in using ^ for exponentiation.
It doesn't group the way it should!  In C++, ^ groups from left to right, just
as in C.  But when doing exponentiation, it should go the other way.

	A^B^C is evaluated as (A^B)^C, which is not at all the same as
A^(B^C).