ARCTANH

List of:	Law Symbols
Subjects:	Laws, SAT Save and Restore
Contents:	Laws

Action:				Makes a law that finds the inverse hyperbolic tangent.
Derivation:				arctanh_law : unary_law : law : ACIS_OBJECT : -
Syntax:				ARCTANH (my_law)
Description:				The mathematical definition is:
Example:				; law "ARCTANH(x)"
				; Define a law and take its derivative.
				(define f (law "arctanh(x)"))
				;; f
				; => #[law "ARCTANH(X)"]
				(define df (law:derivative f))
				;; df
				; => #[law "(1-X^2)^-1"]

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