sinh - Online Linux Manual PageSection : 3
Updated : 2023-02-05
Source : Linux man-pages 6.03

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NAMEsinh, sinhf, sinhl − hyperbolic sine function

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LIBRARYMath library (libm, −lm)

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SYNOPSIS#include <math.h>double sinh(double x); float sinhf(float x); long double sinhl(long double x);Feature Test Macro Requirements for glibc (see feature_test_macros(7)): sinhf(), sinhl(): _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L || /* Since glibc 2.19: */ _DEFAULT_SOURCE || /* glibc <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE

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DESCRIPTIONThese functions return the hyperbolic sine of x, which is defined mathematically as: sinh(x) = (exp(x) − exp(−x)) / 2

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RETURN VALUEOn 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 (negative infinity) is returned. If the result overflows, a range error occurs, and the functions return HUGE_VAL, HUGE_VALF, or HUGE_VALL, respectively, with the same sign as x.

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ERRORSSee math_error(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 (FE_OVERFLOW) is raised.

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ATTRIBUTESFor an explanation of the terms used in this section, see attributes(7). InterfaceAttributeValue sinh(), sinhf(), sinhl() Thread safetyMT-Safe

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STANDARDSC99, POSIX.1-2001, POSIX.1-2008. The variant returning double also conforms to SVr4, 4.3BSD.

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SEE ALSOacosh(3), asinh(3), atanh(3), cosh(3), csinh(3), tanh(3) 0

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