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- ACOS(3) UNIX Programmer's Manual ACOS(3)
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- NNAAMMEE
- aaccooss - arc cosine function
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- SSYYNNOOPPSSIISS
- ##iinncclluuddee <<mmaatthh..hh>>
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- _d_o_u_b_l_e
- aaccooss(_d_o_u_b_l_e _x)
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- _f_l_o_a_t
- aaccoossff(_f_l_o_a_t _x)
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- DDEESSCCRRIIPPTTIIOONN
- The aaccooss() and aaccoossff() functions compute the principal value of the arc
- cosine of _x in the range [0, pi].
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- RREETTUURRNN VVAALLUUEESS
- Exceptional cases are handled by matherr(3).
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- SSEEEE AALLSSOO
- sin(3), cos(3), tan(3), asin(3), atan(3), atan2(3), sinh(3),
- cosh(3), tanh(3), math(3), matherr(3)
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- BSD Experimental May 2, 1991 1
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