Function: calcFunc-erf

calcFunc-erf is an autoloaded and byte-compiled function defined in calc-funcs.el.gz.

Signature

(calcFunc-erf X)

Source Code

;; Defined in /usr/src/emacs/lisp/calc/calc-funcs.el.gz
;;; Error function.

(defun calcFunc-erf (x)
  (if (equal x '(var inf var-inf))
      '(float 1 0)
    (if (equal x '(neg (var inf var-inf)))
	'(float -1 0)
      (if (Math-zerop x)
	  x
	(let ((math-current-gamma-value (math-sqrt-pi)))
	  (math-to-same-complex-quad
	   (math-div (calcFunc-gammag '(float 5 -1)
				      (math-sqr (math-to-complex-quad-one x)))
		     math-current-gamma-value)
	   x))))))