Hyperbolic trigonometric functions

This is a list of systems and their support for the hyperbolic trigonometric functions.

Also included is the result for (atanh 1).

System support (atanh 1)
Bigloo n
Biwa n
Chez y error
Chibi n
Chicken lib +inf.0
Cyclone n
Gambit y error
Gauche y +inf.0
Guile y +inf.0
Kawa y +inf.0
Loko n
Racket y +inf.0
Sagittarius n
SCM y +inf.0
STklos y error
Unsyntax n
Ypsilon n

These functions are part of the Common Lisp standard, but not all implementations work the same, as can be seen below. Clojure was also added to the list, being the only other popular Lisp that implements these functions (Emacs Lisp doesn't).

System (atanh 1)
CCL division by zero
Clisp division by zero
ECL division by zero
GCL division by zero
SBCL division by zero
Clojure illegal argument

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