FLOOR(3) 1 FLOOR(3)floor - Round fractions downSYNOPSIS
float floor (float $value)
DESCRIPTION
Returns the next lowest integer value by rounding down $value if necessary.
PARAMETERS
o $value
- The numeric value to round
RETURN VALUES
$value rounded to the next lowest integer. The return value of floor(3) is still of type float because the value range of float is usually
bigger than that of integer.
EXAMPLES
Example #1
floor(3) example
<?php
echo floor(4.3); // 4
echo floor(9.999); // 9
echo floor(-3.14); // -4
?>
SEE ALSO ceil(3), round(3).
PHP Documentation Group FLOOR(3)
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FLOOR(3) Linux Programmer's Manual FLOOR(3)NAME
floor, floorf, floorl - largest integral value not greater than argument
SYNOPSIS
#include <math.h>
double floor(double x);
float floorf(float x);
long double floorl(long double x);
DESCRIPTION
These functions round x down to the nearest integer.
RETURN VALUE
The rounded integer value. If x is integral or infinite, x itself is returned.
ERRORS
No errors other than EDOM and ERANGE can occur. If x is NaN, then NaN is returned and errno may be set to EDOM.
NOTES
SUSv2 and POSIX 1003.1-2001 contain text about overflow (which might set errno to ERANGE, or raise an exception). In practice, the result
cannot overflow on any current machine, so this error-handling stuff is just nonsense. (More precisely, overflow can happen only when the
maximum value of the exponent is smaller than the number of mantissa bits. For the IEEE-754 standard 32-bit and 64-bit floating point num-
bers the maximum value of the exponent is 128 (resp. 1024), and the number of mantissa bits is 24 (resp. 53).)
CONFORMING TO
The floor() function conforms to SVID 3, POSIX, BSD 4.3, ISO 9899. The other functions are from C99.
SEE ALSO ceil(3), lrint(3), nearbyint(3), rint(3), round(3), trunc(3)
2001-05-31 FLOOR(3)
Hello Experts,
Is there any inbuild FLOOR function to do FLOOR func in mathmetics in awk script like in FlOOR Func in C.
Ex:- floor(2.9) = 2
floor(2.1) = 2
floor(2.0) = 2
floor(-2.0) = 2
floor(-2.1) = -3
floor(-2.9) =... (1 Reply)
Hi all,
Does anyone know how to simulate a ceiling or floor function in UNIX? OS is Solaris. I tried the suggestion from an old forum but it is giving me error as below:
server01/tmp$: echo "7.2" | awk '{printf("%d\n",$0+=$0<0?0:0.999)}'
awk: syntax error near line 1
awk: illegal... (3 Replies)
Hello,
My round and floor functions in C program behaves weird. Can someone help resolve the issue..
fprintf( fp, "ROUND TEST VARIABLE 11686776.000000 %d\n", round(11686776.000000));
fprintf( fp, "ROUND TEST VARIABLE 1168677.000000 %d\n", round(1168677.000000));
fprintf( fp, "FLOOR... (3 Replies)