ID: 41108
Comment by: ljbuesch at purdue dot edu
Reported By: jack dot nerad at comcast dot net
Status: Open
Bug Type: Documentation problem
PHP Version: 6CVS-2007-04-17 (CVS)
New Comment:
### Eclipse Workspace Patch 1.0
#P PHPDoc
Index: en/reference/math/functions/pow.xml
===================================================================
RCS file: /repository/phpdoc/en/reference/math/functions/pow.xml,v
retrieving revision 1.11
diff -u -r1.11 pow.xml
--- en/reference/math/functions/pow.xml 31 Mar 2007 19:18:23
-0000 1.11
+++ en/reference/math/functions/pow.xml 18 Apr 2007 20:18:37 -0000
@@ -16,11 +16,6 @@
Returns <parameter>base</parameter> raised to the power of
<parameter>exp</parameter>.
</para>
- <note>
- <para>
- PHP cannot handle negative <parameter>exp</parameter>s.
- </para>
- </note>
<warning>
<para>
In PHP 4.0.6 and earlier <function>pow</function> always returned
Previous Comments:
------------------------------------------------------------------------
[2007-04-18 06:09:11] [EMAIL PROTECTED]
Made it a doc problem, which it is. It might be that in the past this
negative exponent did not work though.
------------------------------------------------------------------------
[2007-04-18 00:36:25] jack dot nerad at comcast dot net
Now that's turnaround time! I didn't even have to upgrade to the
latest version! :)
Actually, I was looking for how to do exponentiation in the docs, found
pow(), and read:
"Note: PHP cannot handle negative exps."
at
http://us.php.net/manual/en/function.pow.php
There's pretty much only one way to read that, I think, so I didn't
bother to look for features explicitly ruled out by the docs. In
addition, there are a bunch of notes with hacks on how to get around the
no negative exponents 'feature?'
(shrug)
Close this feature request, or whatever. Maybe change it to a bug in
the docs?
------------------------------------------------------------------------
[2007-04-17 08:27:42] [EMAIL PROTECTED]
What are you talking about?
# php -r 'var_dump(pow(2,-2));'
float(0.25)
------------------------------------------------------------------------
[2007-04-17 01:37:39] jack dot nerad at comcast dot net
Description:
------------
It is a sin that PHP cannot handle negative exponents. Every other
respectable language that has half the vocabulary that PHP has can
handle negative exponents. Heck, even the windows calculator can handle
negative exponents. Please. Mature and refine the language to include
this ability.
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=41108&edit=1
