delorie.com/archives/browse.cgi   search  
Mail Archives: djgpp/1999/04/21/03:55:37

From: Martin Ambuhl <mambuhl AT earthlink DOT net>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: how to write exponents?
Date: Wed, 21 Apr 1999 04:14:59 -0400
References: <ZFdT2.478$h35 DOT 4939 AT newsfeed DOT slurp DOT net> <7fjvql$4ck AT cs DOT vu DOT nl>
X-Posted-Path-Was: not-for-mail
X-Accept-Language: en
X-ELN-Date: 21 Apr 1999 08:14:03 GMT
X-ELN-Insert-Date: Wed Apr 21 01:15:17 1999
Organization: Nocturnal Aviation
Lines: 23
Mime-Version: 1.0
NNTP-Posting-Host: 1cust211.tnt12.nyc3.da.uu.net
Message-ID: <371D8903.D13E728C@earthlink.net>
X-Mailer: Mozilla 4.51 [en] (Win95; I)
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Reply-To: djgpp AT delorie DOT com

mdruiter AT cs DOT vu DOT nl wrote:
> 
> Todd Steury <steu4718 AT uidaho DOT edu> wrote:
> > For
> > exponents, I've written my equations as "a^b" to signify 'take a to the b
> > power'.  However, the compiler complains "invalid operands 'float' and
> > 'double' to binary 'operator ^'".  What is the proper mathematical operator
> > for exponent?
> 
> It is exp(a, b), type `info libc alph exp' on the command line to get info.
> 
> (a ^ b) means (a xor b), being the bitwise exclusive or operator.
> 
> Hope this helps, Michel.

It won't.  The function is pow().  exp() takes one argument, not two, and
returns pow(e,x) where e is the usual 2.7....  The suggestion to type 'info libc
a exp' is a good one, but it needs to be supplimented with the correct 'info
libc a pow'.

-- 
Martin Ambuhl (mambuhl AT earthlink DOT net)
Note: mambuhl AT tiac DOT net will soon be inactive

- Raw text -


  webmaster     delorie software   privacy  
  Copyright © 2019   by DJ Delorie     Updated Jul 2019