\ 4tH library - FSINH FCOSH FTANH - Copyright 2008 J.L. Bezemer
\ You can redistribute this file and/or modify it under
\ the terms of the GNU General Public License
[UNDEFINED] fsinh [IF]
[UNDEFINED] fexp [IF] include lib/fexp.4th [THEN]
: (e^x) fdup fexp fswap fnegate fexp ;
: fsinh (e^x) f- 2 s>f f/ ;
: fcosh (e^x) f+ 2 s>f f/ ;
: ftanh fdup f+ fexp 1 s>f fover fover f- frot frot f+ f/ ;
[DEFINED] 4TH# [IF] hide (e^x) [THEN]
[THEN]
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