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- ACOSH(3) UNIX Programmer's Manual ACOSH(3)
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- NNAAMMEE
- aaccoosshh - inverse hyperbolic cosine function
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- SSYYNNOOPPSSIISS
- ##iinncclluuddee <<mmaatthh..hh>>
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- _d_o_u_b_l_e
- aaccoosshh(_d_o_u_b_l_e _x)
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- _f_l_o_a_t
- aaccoosshhff(_f_l_o_a_t _x)
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- DDEESSCCRRIIPPTTIIOONN
- The aaccoosshh() and aaccoosshhff() functions compute the inverse hyperbolic cosine
- of the real argument _x.
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- RREETTUURRNN VVAALLUUEESS
- Exceptional cases are handled by matherr(3).
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- SSEEEE AALLSSOO
- asinh(3), atanh(3), exp(3), infnan(3), math(3), matherr(3)
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- HHIISSTTOORRYY
- The aaccoosshh() function appeared in 4.3BSD.
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- 4.3 Berkeley Distribution May 6, 1991 1
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