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Bug #8961 Omited Math Function
Submitted: 2001-01-27 20:46 UTC Modified: 2001-09-09 15:56 UTC
From: Frank at kujawski dot Org Assigned:
Status: Not a bug Package: Math related
PHP Version: 4.0 Latest CVS (27/01/2001) OS: N/A
Private report: No CVE-ID: None
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From: Frank at kujawski dot Org
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 [2001-01-27 20:46 UTC] Frank at kujawski dot Org 
There are a set of four math function that convert real numbers to integers, trunc is missing.  Other functions of use are Frac, Mod, Div.

Round: return closest integer to argument, if fractional is .5 then return closest even integer.

Ceiling: return smallest integer greater than or equal to argument

Floor: return largest integer less than or equal to argument

Trunc: if argument is positive, return floor of argument, otherwise return ceiling of argument.

Frac: return abs(argument - trunc(argument))

Mod: returns remainder of the division of two arguments

Div: returns quotiant of the division of two arguments


(I ran into this problem when converting a decimal number to an IP number.)

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 [2001-01-27 20:55 UTC] rasmus@php.net 
Not sure what you are asking for here.
round() exists
Modulus exists with the modulus operator.  ie. echo 3%2;
ceil() exists
floor() exists
Division obviously exists
Trunc sort of exists: echo (int)10.57;
Frac can be derived as well.  But I suppose that is the one you are asking for a native function for?
 [2001-09-09 05:31 UTC] sterling@php.net 
PHP is not to my knowledge ASP.  This is won't (shouldn't)
be added anytime soon...
 [2001-09-09 15:56 UTC] Frank at kujawski dot Org 
I am not sure where ASP, came from.
These are all native functions of most Numeric Processors.
My suggestion was just that, a suggestion.
It allows for completionof functions that I thought would be easy to implemented.
 
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