Electronic data processing apparatus with equation operating sys

Details Electronic data processing apparatus with equation operating sys Electronic data processing apparatus with equation operating sys

1984-02-29

1985-06-04

Malzahn, David H.

Boots, shoes, and leggings

G06F 7552

Patent

active

045218684

ABSTRACT:
The equation operating system is an improved data and command entry format together with a compatible operation system for use with electronic data processing apparatuses, most particularly with scientific calculators which provide an alphanumeric display of entered equations. This invention provides a different set of commands and displayed characters for performing exponentiation. An up arrow together with a down arrow serve to define the expression of the exponent. The numeric data stored in a numeric display register upon implementation of the exponentiation is raised to the power of the expression between the up arrow and the down arrow. This invention also includes an integral power exponentiation command which enables easy entry of single digit positive integral exponents, thereby eliminating the need for a completing command.

REFERENCES:
patent: 3593313 (1971-07-01), Tomaszewski et al.
patent: 4152774 (1979-05-01), Olander, Jr. et al.
patent: 4410956 (1983-10-01), Yoshida et al.

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