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CASIN(3) Library Functions Manual CASIN(3) NAME casin, casinf, casinl - complex arc sine functions SYNOPSIS #include <complex.h> double complex casin(double complex z); float complex casinf(float complex z); long double complex casinl(long double complex z); DESCRIPTION These functions compute the complex arc sine of z, with branch cuts outside the interval [-1, +1] along the real axis. RETURN VALUES These functions return the complex arc sine value, in the range of a strip mathematically unbounded along the imaginary axis and in the interval [-pi/2, +pi/2] along the real axis. ERRORS No errors are defined. SEE ALSO csin(3), IEEE Std 1003.1-2001 ("POSIX.1") <complex.h> COPYRIGHT Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. In the event of any discrepancy between this version and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can be obtained online at http://www.opengroup.org/unix/online.html . NetBSD 8.99.34 January 29, 2013 NetBSD 8.99.34