Compact electronic calculator having graph display function

Details Compact electronic calculator having graph display function Compact electronic calculator having graph display function

1986-05-09

1988-12-27

Malzahn, David H.

Boots, shoes, and leggings

364521, G06F 1566, G06F 314

Patent

active

047945532

ABSTRACT:
A compact electronic calculator having a graph display function of the invention has function keys for inputting functional formulas, a memory for storing an input functional formula, range input keys for inputting range data for variables in the formula, a memory for storing the range data, and a read-only memory (ROM) for storing a control program which sequentially calculates the values of the dependent variable for the independent variable with an ALU in accordance with the functional formula and the range data and which displays the calculated values on a display component.

REFERENCES:
patent: 4184202 (1980-01-01), McCrae
patent: 4535416 (1985-08-01), Kano et al.
patent: 4566072 (1986-01-01), Mortensen et al.
patent: 4701962 (1978-07-01), Hakata

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