frexp man page on Ultrix

 Man page or keyword search:   man All Sections 1 - General Commands 2 - System Calls 3 - Subroutines, Functions 4 - Special Files 5 - File Formats 6 - Games and Screensavers 7 - Macros and Conventions 8 - Maintenence Commands 9 - Kernel Interface New Commands Server 4.4BSD AIX Alpinelinux Archlinux Aros BSDOS BSDi Bifrost CentOS Cygwin Darwin Debian DigitalUNIX DragonFly ElementaryOS Fedora FreeBSD Gentoo GhostBSD HP-UX Haiku Hurd IRIX Inferno JazzOS Kali Knoppix LinuxMint MacOSX Mageia Mandriva Manjaro Minix MirBSD NeXTSTEP NetBSD OPENSTEP OSF1 OpenBSD OpenDarwin OpenIndiana OpenMandriva OpenServer OpenSuSE OpenVMS Oracle PC-BSD Peanut Pidora Plan9 QNX Raspbian RedHat Scientific Slackware SmartOS Solaris SuSE SunOS Syllable Tru64 UNIXv7 Ubuntu Ultrix UnixWare Xenix YellowDog aLinux   3690 pages apropos Keyword Search (all sections) Output format html ascii pdf view pdf save postscript
[printable version]

```frexp(3)							      frexp(3)

Name
frexp, ldexp, modf - split into mantissa and exponent

Syntax
#include <math.h>

double frexp(value, eptr)
double value;
int *eptr;

double ldexp(value, exp)
double value;

double modf(value, iptr)
double value, *iptr;

Description
The subroutine returns the mantissa of a double value as a double quan‐
tity, x, of magnitude less than 1.0 and greater than or	equal  to  0.5
(0.5 <= |x| < 1) and stores an integer n such that value = x*2**n indi‐
rectly through eptr.

The returns the quantity value*2**exp.

The returns the positive fractional part of value and stores the	 inte‐
ger part indirectly through iptr.

Return Values
If  would  cause overflow, ±HUGE_VAL is returned (according to the sign
of value) and errno is set to ERANGE.  If would cause underflow,	 0  is
returned and errno is set to ERANGE.

frexp(3)
```
[top]

List of man pages available for Ultrix

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.