NAME
sinh, sinhf, sinhl - hyperbolic sine function SYNOPSIS
#include
double sinh(double x); float sinhf(float x); long double sinhl(long double x); Link with -lm. Feature Test Macro Requirements for glibc (see featuretestmacros(7)): sinhf(), sinhl(): BSDSOURCE || SVIDSOURCE || XOPENSOURCE >= 600 || ISOC99SOURCE || POSIXCSOURCE >= 200112L;
or cc -std=c99 DESCRIPTION The sinh() function returns the hyperbolic sine of x, which is defined mathematically as:
sinh(x) = (exp(x) - exp(-x)) / 2 RETURN VALUE On success, these functions return the hyperbolic sine of x. If x is a NaN, a NaN is returned.
If x is +0 (-0), +0 (-0) is returned. If x is positive infinity (negative infinity), positive infinity (nega‐ tive infinity) is returned. If the result overflows, a range error occurs, and the functions return HUGEVAL, HUGEVALF, or HUGEVALL, respectively, with the same sign as x. ERRORS See matherror(7) for information on how to determine whether an error has occurred when calling these functions. The following errors can occur: Range error: result overflow
errno is set to ERANGE. An overflow floating-point exception (FEOVERFLOW) is raised. ATTRIBUTES For an explanation of the terms used in this section, see attributes(7). ┌─────────────────────────┬───────────────┬─────────┐ │Interface │ Attribute │ Value │ ├─────────────────────────┼───────────────┼─────────┤
│sinh(), sinhf(), sinhl() │ Thread safety │ MT-Safe │ └─────────────────────────┴───────────────┴─────────┘ CONFORMING TO
C99, POSIX.1-2001. The variant returning double also conforms to SVr4, 4.3BSD, C89. SEE ALSO acosh(3), asinh(3), atanh(3), cosh(3), csinh(3), tanh(3) COLOPHON
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2010-09-20 SINH(3)