Data processing apparatus having alterable interest rate mode ca

Details Data processing apparatus having alterable interest rate mode ca Data processing apparatus having alterable interest rate mode ca

1981-12-21

1985-03-26

Shaw, Gareth D.

Boots, shoes, and leggings

364408, G06F 302

Patent

active

045077452

ABSTRACT:
A data processing apparatus having preprogrammed functions for calculating interest rate dependent variables employs an interest rate mode designation command to enable operation in a selected one of a set of interest rate modes. In the preferred embodiment actuation of an AEC key advances the interest rate mode in a circularly sequential manner among annual percentage rate (sometimes referred to an annual nominal interest rate), annual effective interest rate and annual continuous interest rate. In the preferred embodiment actuation of a key sequence including a compute key and the AEC key enables conversion of an interest rate specified in a first mode into an interest rate specified in the next sequential mode. The data processing apparatus includes a means for outputting an indication of the current interest rate mode.

REFERENCES:
patent: 3955074 (1976-05-01), Rode et al.
patent: 3976975 (1976-08-01), Cochran
patent: 4055757 (1977-10-01), Tillman et al.
patent: 4194242 (1980-03-01), Robbins

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