casin(3M)casin(3M)NAMEcasin(), casinf(), casinl(), casinw(), casinq() - complex arcsine func‐
tions
SYNOPSISDESCRIPTION
These functions are available only for Integrity servers.
returns the complex arcsine of z, in the range of a strip mathemati‐
cally unbounded along the imaginary axis and in the interval
[-Pi/2,+Pi/2] along the real axis. Branch cuts are outside the inter‐
val [-1,+1] along the real axis.
is a version of it takes a argument and returns a result.
is a version of it takes a argument and returns a result.
is an version of it takes an argument and returns an result.
is equivalent to on HP-UX systems.
USAGE
To use these functions, compile with the default option. To use com‐
pile with the option. Make sure your program includes Link in the math
library by specifying on the compiler or linker command line.
RETURN VALUE
= and is an odd function.
returns 0+i0.
returns Pi/2+iInf for positive-signed finite y.
returns NaN+iNaN and may raise the invalid exception for finite y.
returns +0+iInf for positive-signed finite x.
returns Pi/4+iInf.
returns NaN+iInf.
returns +0+iNaN.
returns NaN+iNaN and may raise the invalid exception for finite nonzero
x.
(where the sign of the imaginary part of the result is unspecified).
returns NaN+iNaN.
ERRORS
No errors are defined.
SEE ALSOasin(3M), asinh(3M), csin(3M), complex(5).
STANDARDS CONFORMANCE
: ISO/IEC C99 (including Annex G, ``IEC 60559-compatible complex arith‐
metic'')
HP Integrity Server Only casin(3M)