KASH3 Ref - Argtanh

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| ### Function Argtanh ( elt-fld^rea x ) -> elt-fld^rea ### Description Return y such that tanh(y) = x. ### Examples x_im := 0.30950692121263846218; x_arg := Argtanh(x_im); Tanh(x_arg);
| Built: Mon Nov 14 21:12:39 UTC 2005 on mack