Searched defs:atanh (Results 1 - 1 of 1) sorted by relevance

/osnet-11/usr/src/cmd/perl/5.8.4/distrib/lib/Math/
H A DComplex.pm55 asinh acosh atanh
1197 # atanh
1199 # Computes the arc hyperbolic tangent atanh(z) = 1/2 log((1+z) / (1-z)).
1201 sub atanh { subroutine
1207 _divbyzero 'atanh(1)', "1 - $z" if (1 - $z == 0);
1208 _logofzero 'atanh(-1)' if (1 + $z == 0);
1700 atanh(z) = 1/2 * log((1+z) / (1-z))
1704 acoth(z) = atanh(1 / z) = 1/2 * log((1+z) / (z-1))
1882 atanh asech acsch acoth
1894 atanh(
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