casinh
Section: C Library Functions (3)
Updated: 2022-12-15
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NAME
casinh, casinhf, casinhl - complex arc sine hyperbolic
LIBRARY
Math library
(libm, -lm)
SYNOPSIS
#include <complex.h>
double complex casinh(double complex z);
float complex casinhf(float complex z);
long double complex casinhl(long double complex z);
DESCRIPTION
These functions calculate the complex arc hyperbolic sine of
z.
If y~=~casinh(z), then z~=~csinh(y).
The imaginary part of
y
is chosen in the interval [-pi/2,pi/2].
One has:
casinh(z) = clog(z + csqrt(z * z + 1))
VERSIONS
These functions were added in glibc 2.1.
ATTRIBUTES
For an explanation of the terms used in this section, see
attributes(7).
| Interface | Attribute | Value
|
|
casinh(),
casinhf(),
casinhl()
| Thread safety | MT-Safe
|
STANDARDS
C99, POSIX.1-2001, POSIX.1-2008.
SEE ALSO
asinh(3),
cabs(3),
cimag(3),
csinh(3),
complex(7)
Index
- NAME
-
- LIBRARY
-
- SYNOPSIS
-
- DESCRIPTION
-
- VERSIONS
-
- ATTRIBUTES
-
- STANDARDS
-
- SEE ALSO
-
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