Electronic calculator having a graph display function

Details Electronic calculator having a graph display function Electronic calculator having a graph display function

1986-05-27

1988-12-27

Malzahn, David H.

Boots, shoes, and leggings

364521, G06F 314, G06F 1566

Patent

active

047945540

ABSTRACT:
An electronic calculator having a graph display function which displays a graph of a desired function on a liquid-crystal display screen, within a designated range, input from a keyboard. The electronic calculator can change the range using a predetermined point or range on the screen as the center, thus enlarging or reducing the displayed graph to a desired magnification.

REFERENCES:
patent: 4535416 (1985-08-01), Kano et al.
patent: 4545023 (1985-10-01), Mizzi
patent: 4566072 (1986-01-01), Mortensen et al.
patent: 4622641 (1986-11-01), Stephens

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