(calc-arctan, calc-tanh, calc-arctanh): Removed extra definitions.

(calc-coth): New function.
(calcFunc-cot): Fix `let'.

1 files changed, 4 insertions, 15 deletions

diff --git a/lisp/calc/calc-math.el b/lisp/calc/calc-math.el
index d2c66c34d49..ffb7644cdfe 100644
--- a/lisp/calc/calc-math.el
+++ b/lisp/calc/calc-math.el
@@ -236,21 +236,10 @@
        (calc-unary-op "coth" 'calcFunc-coth arg)
      (calc-unary-op "cot" 'calcFunc-cot arg))))
 
-(defun calc-arctan (arg)
-  (interactive "P")
-  (calc-invert-func)
-  (calc-tan arg))
-
-(defun calc-tanh (arg)
+(defun calc-coth (arg)
   (interactive "P")
   (calc-hyperbolic-func)
-  (calc-tan arg))
-
-(defun calc-arctanh (arg)
-  (interactive "P")
-  (calc-invert-func)
-  (calc-hyperbolic-func)
-  (calc-tan arg))
+  (calc-cot arg))
 
 (defun calc-arctan2 ()
   (interactive)
@@ -991,11 +980,11 @@
          (or (math-with-extra-prec 2
                (let* ((xx (math-to-radians (math-float x)))
                       (na (math-floor (math-div (nth 2 xx) (math-pi))))
-                      (nb (math-floor (math-div (nth 3 xx) (math-pi))))
+                      (nb (math-floor (math-div (nth 3 xx) (math-pi)))))
                  (and (equal na nb)
                       (math-sort-intv (nth 1 x)
                                       (math-cot-raw (nth 2 xx))
-                                      (math-cot-raw (nth 3 xx)))))))
+                                      (math-cot-raw (nth 3 xx))))))
              '(intv 3 (neg (var inf var-inf)) (var inf var-inf))))
         ((equal x '(var nan var-nan))
          x)