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

1982-05-25

1985-01-22

Malzahn, David H.

Boots, shoes, and leggings

G06F 752

Patent

active

044955928

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 an implied multiplication having differing hierarchical ranks when one of a member of a predetermined prefix set entry is followed by one of two differing suffix set entries. Each of these implied multiplications have a differing hierarchical rank than that of explicit multiplication.

REFERENCES:
patent: 3996562 (1976-12-01), Reach et al.
patent: 4158233 (1979-06-01), Olander, Jr. et al.

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