Electronic calculator having function keys with programmable labels.

摘要

Calculator having a keyboard (12) in which one or more keys (20) have labels (31-35) created by a display (11) and subject to changing interactively as the user desires. Typically, advanced scientific-programmable calculators may have too many functions to be adequately included on the keys of the keyboard associated therewith. In such calculators, certain functions require a plurality of keys to be actuated in order to be performed. Thus, such keyboards tend to be cluttered and confusing to the user. Thus, a keyboard (12) is proposed having a small number of keys (21-25) labeled with different functional labels (31-35) as the user proceeds through a menu or tree structure containing all the desired functions. Keys (21-25) in a certain group of keys (20) on the keyboard are thereby subject to redefinition or relabeling so as to provide a variety of functions.