(define-key calc-mode-map "\M-k" 'calc-copy-as-kill)
(define-key calc-mode-map "\C-w" 'calc-kill-region)
(define-key calc-mode-map "\M-w" 'calc-copy-region-as-kill)
+ (define-key calc-mode-map "\M-\C-w" 'kill-ring-save)
(define-key calc-mode-map "\C-_" 'calc-undo)
(define-key calc-mode-map "\C-xu" 'calc-undo)
(define-key calc-mode-map "\M-\C-m" 'calc-last-args)