Function: calc-undefine-unit

calc-undefine-unit is an autoloaded, interactive and byte-compiled function defined in calc-units.el.gz.

Signature

(calc-undefine-unit UNAME)

Key Bindings

Source Code

;; Defined in /usr/src/emacs/lisp/calc/calc-units.el.gz
(defun calc-undefine-unit (uname)
  (interactive "SUndefine unit name: ")
  (calc-wrapper
   (let ((unit (assq uname math-additional-units)))
     (or unit
	 (if (assq uname math-standard-units)
	     (error "\"%s\" is a predefined unit name" uname)
	   (error "Unit name \"%s\" not found" uname)))
     (setq math-additional-units (delq unit math-additional-units)
	   math-units-table nil)))
  (calc-invalidate-units-table))