erfc man page on OpenDarwin

 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   3202 pages apropos Keyword Search (all sections) Output format html ascii pdf view pdf save postscript
[printable version]

ERF(3)			 BSD Library Functions Manual			ERF(3)

NAME
erf, erfc — error function operators

SYNOPSIS
#include <math.h>

double
erf(double x);

double
erfc(double x);

DESCRIPTION
These functions calculate the error function of x.

The erf() function calculates the error function of x; where

erf(x) = 2/sqrt(pi)∗integral from 0 to x of exp(-t∗t) dt.

The erfc() function calculates the complementary error function of x;
that is erfc() subtracts the result of the error function erf(x) from
1.0.  This is useful, since for large x places disappear.

SPECIAL VALUES
erf(�0) returns �0.

erf(�infinity) returns �1.

erfc(-infinity) returns 2.

erfc(+infinity) returns +0.

math(3)

STANDARDS
The erf() and erfc() functions conform to ISO/IEC 9899:1999(E).

4.3 Berkeley Distribution      January 30, 2003	     4.3 Berkeley Distribution
[top]

List of man pages available for OpenDarwin

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.