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atanh
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1994-02-21
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324b
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15 lines
//-------------------------------------------------------------------//
// Syntax: atanh ( X )
// Description:
// Atanh is the inverse hyperbolic tangent of the element(s) of X.
//-------------------------------------------------------------------//
atanh = function ( x )
{
return log ((1 + x) ./ (1 - x))/2;
};