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31 Although there are deceptively simple formulae available for all of these functions,
32 a naive implementation that used these formulae would fail catastrophically
33 for some input values. The Boost versions of these functions have been implemented
34 using the methodology described in "Implementing the Complex Arcsine and
35 Arccosine Functions Using Exception Handling" by T. E. Hull Thomas F.
36 Fairgrieve and Ping Tak Peter Tang, ACM Transactions on Mathematical Software,
37 Vol. 23, No. 3, September 1997. This means that the functions are well defined
38 over the entire complex number range, and produce accurate values even at the
39 extremes of that range, where as a naive formula would cause overflow or underflow
40 to occur during the calculation, even though the result is actually a representable
41 value. The maximum theoretical relative error for all of these functions is
42 less than 9.5&#949; for every machine-representable point in the complex plane. Please
43 refer to comments in the header files themselves and to the above mentioned
44 paper for more information on the implementation methodology.
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