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From: asd1466@isc.rit.edu (A.S. Dumas)
Newsgroups: sci.math,comp.sys.ibm.pc.misc
Subject: acosh, asinh
Message-ID: <1991Feb11.144748.3273@isc.rit.edu>
Date: 11 Feb 91 14:47:48 GMT
Organization: Rochester Institute of Technology
Lines: 11


Has anyone written functions to do inverse hyperbolic sine and cosine
(or know a math function that could be implemented)?
I know that x=ln(2*u) gives a good approximation for x > 10 degrees or so
but I need a function for much smaller values of x.

Please email responses.

Thanks, Art
-- 
asd1466@ultb.isc.rit.edu