suse man page for tanl

Query: tanl

OS: suse

Section: 3

Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar

TAN(3)							     Linux Programmer's Manual							    TAN(3)

NAME
tan, tanf, tanl - tangent function
SYNOPSIS
#include <math.h> double tan(double x); float tanf(float x); long double tanl(long double x); Link with -lm. Feature Test Macro Requirements for glibc (see feature_test_macros(7)): tanf(), tanl(): _BSD_SOURCE || _SVID_SOURCE || _XOPEN_SOURCE >= 600 || _ISOC99_SOURCE; or cc -std=c99
DESCRIPTION
The tan() function returns the tangent of x, where x is given in radians.
RETURN VALUE
On success, these functions return the tangent of x. If x is a NaN, a NaN is returned. If x is positive infinity or negative infinity, a domain error occurs, and a NaN is returned. If the correct result would overflow, a range error occurs, and the functions return HUGE_VAL, HUGE_VALF, or HUGE_VALL, respectively, with the mathematically correct sign.
ERRORS
See math_error(7) for information on how to determine whether an error has occurred when calling these functions. The following errors can occur: Domain error: x is an infinity An invalid floating-point exception (FE_INVALID) is raised. Range error: result overflow An overflow floating-point exception (FE_OVERFLOW) is raised. These functions do not set errno.
CONFORMING TO
C99, POSIX.1-2001. The variant returning double also conforms to SVr4, 4.3BSD, C89.
SEE ALSO
acos(3), asin(3), atan(3), atan2(3), cos(3), ctan(3), sin(3)
COLOPHON
This page is part of release 3.25 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/. 2008-08-05 TAN(3)
Related Man Pages
atan2f(3) - linux
atan2(3) - debian
atan2f(3) - debian
atan2l(3) - centos
tan(3) - plan9
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