| Defined in header <math.h> | ||||
|---|---|---|---|---|
| (1) | (since C99) | ||
| (2) | |||
| (3) | (since C99) | ||
| Defined in header <tgmath.h> | ||||
| (4) | (since C99) |
1-3) Computes hyperbolic sine of
arg. 4) Type-generic macro: If the argument has type
long double, sinhl is called. Otherwise, if the argument has integer type or the type double, sinh is called. Otherwise, sinhf is called. If the argument is complex, then the macro invokes the corresponding complex function (csinhf, csinh, csinhl).Parameters
| arg | - | floating point value representing a hyperbolic angle |
Return value
If no errors occur, the hyperbolic sine of arg (sinh(arg), or
| earg -e-arg |
| 2 |
) is returned.
If a range error due to overflow occurs, ±HUGE_VAL, ±HUGE_VALF, or ±HUGE_VALL is returned.
If a range error occurs due to underflow, the correct result (after rounding) is returned.
Error handling
Errors are reported as specified in math_errhandling.
If the implementation supports IEEE floating-point arithmetic (IEC 60559),
- if the argument is ±0 or ±∞, it is returned unmodified
- if the argument is NaN, NaN is returned
Notes
POSIX specifies that in case of underflow, arg is returned unmodified, and if that is not supported, an implementation-defined value no greater than DBL_MIN, FLT_MIN, and LDBL_MIN is returned.
Example
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | #include <stdio.h>#include <math.h>#include <errno.h>#include <fenv.h> #pragma STDC FENV_ACCESS ONint main(void){ printf("sinh(1) = %f\nsinh(-1)=%f\n", sinh(1), sinh(-1)); printf("log(sinh(1) + cosh(1))=%f\n", log(sinh(1)+cosh(1))); // special values printf("sinh(+0) = %f\nsinh(-0)=%f\n", sinh(0.0), sinh(-0.0)); // error handling errno=0; feclearexcept(FE_ALL_EXCEPT); printf("sinh(710.5) = %f\n", sinh(710.5)); if(errno == ERANGE) perror(" errno == ERANGE"); if(fetestexcept(FE_OVERFLOW)) puts(" FE_OVERFLOW raised");} |
Possible output:
1 2 3 4 5 6 7 8 | sinh(1) = 1.175201sinh(-1)=-1.175201log(sinh(1) + cosh(1))=1.000000sinh(+0) = 0.000000sinh(-0)=-0.000000sinh(710.5) = inf errno == ERANGE: Numerical result out of range FE_OVERFLOW raised |
References
- C11 standard (ISO/IEC 9899:2011):
- 7.12.5.5 The sinh functions (p: 241-242)
- 7.25 Type-generic math <tgmath.h> (p: 373-375)
- F.10.2.5 The sinh functions (p: 520)
- C99 standard (ISO/IEC 9899:1999):
- 7.12.5.5 The sinh functions (p: 222)
- 7.22 Type-generic math <tgmath.h> (p: 335-337)
- F.9.2.5 The sinh functions (p: 457)
- C89/C90 standard (ISO/IEC 9899:1990):
- 4.5.3.2 The sinh function
See also
| (C99)(C99) | computes hyperbolic cosine (ch(x)) (function) |
| (C99)(C99) | computes hyperbolic tangent (function) |
| (C99)(C99)(C99) | computes inverse hyperbolic sine (arsinh(x)) (function) |
| (C99)(C99)(C99) | computes the complex hyperbolic sine (function) |
C++ documentation for sinh | |
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