Function: calcFunc-arcsinh

calcFunc-arcsinh is an autoloaded and byte-compiled function defined in calc-math.el.gz.

Signature

(calcFunc-arcsinh X)

Source Code

;; Defined in /usr/src/emacs/lisp/calc/calc-math.el.gz
(defun calcFunc-arcsinh (x)   ; [N N] [Public]
  (cond ((eq x 0) 0)
	(math-expand-formulas
	 (math-normalize
	  (list 'calcFunc-ln (list '+ x (list 'calcFunc-sqrt
					      (list '+ (list '^ x 2) 1))))))
	((Math-numberp x)
	 (if calc-symbolic-mode (signal 'inexact-result nil))
	 (math-with-extra-prec 2
	   (math-ln-raw (math-add x (math-sqrt-raw (math-add (math-sqr x)
							     '(float 1 0)))))))
	((eq (car-safe x) 'sdev)
	 (math-make-sdev (calcFunc-arcsinh (nth 1 x))
			 (math-div (nth 2 x)
				   (math-sqrt
				    (math-add (math-sqr (nth 1 x)) 1)))))
	((eq (car x) 'intv)
	 (math-sort-intv (nth 1 x)
			 (calcFunc-arcsinh (nth 2 x))
			 (calcFunc-arcsinh (nth 3 x))))
	((or (equal x '(var inf var-inf))
	     (equal x '(neg (var inf var-inf)))
	     (equal x '(var nan var-nan)))
	 x)
	(t (calc-record-why 'numberp x)
	   (list 'calcFunc-arcsinh x))))