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These functions compute the complex arc cosine of _z, with
branch cuts outside the interval [-1, +1] along the
real axis.
These functions return the complex arc cosine value, in the
range of a strip mathematically unbounded along the imaginary
axis and in the interval [0, pi] along the real axis.
No errors are defined.
_T_h_e _f_o_l_l_o_w_i_n_g _s_e_c_t_i_o_n_s _a_r_e _i_n_f_o_r_m_a_t_i_v_e_.
None.
None.
None.
None.
_c_c_o_s(), the Base Definitions volume of IEEE Std 1003.1-2001,
_<_c_o_m_p_l_e_x_._h_>
DESCRIPTION
RETURN VALUE
ERRORS
EXAMPLES
APPLICATION USAGE
RATIONALE
FUTURE DIRECTIONS
SEE ALSO
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 .