4.4BSD/usr/share/man/cat3/asin.0

Compare this file to the similar file:
Show the results in this format: 

ASIN(3)                     BSD Programmer's Manual                    ASIN(3)

NNAAMMEE
     aassiinn - arc sine function

SSYYNNOOPPSSIISS
     ##iinncclluuddee <<mmaatthh..hh>>

     _d_o_u_b_l_e
     aassiinn(_d_o_u_b_l_e _x);

DDEESSCCRRIIPPTTIIOONN
     The aassiinn() function computes the principal value of the arc sine of _x. A
     domain error occurs for arguments not in the range [-1, +1].  For a dis-
     cussion of error due to roundoff, see math(3).

RREETTUURRNN VVAALLUUEESS
     The aassiinn() function returns the arc sine in the range [-pi/2, +pi/2] ra-
     dians.  On the VAX, and Tahoe , if:

           |_x| > 1

     the global variable _e_r_r_n_o is set to EDOM and a reserved operand fault
     generated.

SSEEEE AALLSSOO
     acos(3),  atan(3),  atan2(3),  cos(3),  cosh(3),  sin(3),  sinh(3),
     tan(3),  tanh(3),  math(3),

SSTTAANNDDAARRDDSS
     The aassiinn() function conforms to ANSI C X3.159-1989 (``ANSI C '').

4.4BSD                           June 4, 1993                                1