Patent ID: 6081819
Filing Date: 2000-06-27
Classification: G06F

Abstract:
An electronic calculator with a graph displaying function comprising:an input device having various function keys for inputting data and performing various operations, the operations including screen storage, screen display, deletion and rearrangement;a display device for displaying screen images, the screen images including numerical value images, numerical formula images, and graphic images inputted from the input device;a first storage device for storing a control program;a second storage device for successively storing the screen images; anda control device for controlling the input device, the display device, the first storage device, and the second storage device by means of the control program,wherein the control devicestores separate screen images displayed on the display device successively in the second storage device upon initiation of the screen storage operation by the input device,successively reads out and displays on the display device in their order of storage, screen images stored in the second storage device upon initiation of the screen display operation by the input device.