Electronic calculator with graph displaying function

Details Electronic calculator with graph displaying function Electronic calculator with graph displaying function

1998-04-09

2000-06-27

Malzahn, David H.

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Having specialized output

G06F 314

Patent

active

060818190

ABSTRACT:
An electronic calculator with a graph displaying function includes: an input device having various function keys for inputting data and performing various functions; a display device for displaying one of screen images including a numerical value image, a numerical formula image, or a graph image inputted from the input device; a first storage device for storing a control program; a second storage device for if storing at least one of the screen images; and a control device for controlling each of the input device, the display device, the first storage device, and the second storage device by means of the control program, wherein the control device allows a screen image displayed successively on the display device to be stored in the second storage device by a screen storage operation of the input device, and allows each screen image to be successively read out and displayed on the display device in an order of storage in the second storage device by a screen display operation of the input device.

REFERENCES:
patent: 5210708 (1993-05-01), Negishi
patent: 5245559 (1993-09-01), Lapeyre
patent: 5289394 (1994-02-01), Lapeyre
patent: 5519646 (1996-05-01), Uemura et al.
patent: 5535317 (1996-07-01), Tanaka et al.
patent: 5732001 (1998-03-01), Nakayama et al.
patent: 5901074 (1999-05-01), Nakano et al.

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