Data processing apparatus having alterable interest rate mode capability
First Claim
1. A data processing apparatus comprising:
- an operator input means for entering numerical data and operational commands, said operational commands including (a) at least one interest rate dependent operational command corresponding to an interest rate dependent data processing function and (b) at least one interest rate mode designation command for designating one of a plurality of interest rate specification modes, said operator input means further includes means for designating one of a circularly sequential ordered set composed of said plurality of interest rate specification modes and means for designating the next sequential one of saidordered set of said interest rate specification modes upon entry of said interest rate mode designation command;
an arithmetic means, responsive to said input means, for performing entered operational commands on entered data and generating a result, including performing interest rate dependent operational commands on entered data in the designated interest rate specification mode; and
an output means for generating an operator perceivable indication of said result generated by said arithmetic means.
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Accused Products
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.
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Citations
6 Claims
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1. A data processing apparatus comprising:
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an operator input means for entering numerical data and operational commands, said operational commands including (a) at least one interest rate dependent operational command corresponding to an interest rate dependent data processing function and (b) at least one interest rate mode designation command for designating one of a plurality of interest rate specification modes, said operator input means further includes means for designating one of a circularly sequential ordered set composed of said plurality of interest rate specification modes and means for designating the next sequential one of saidordered set of said interest rate specification modes upon entry of said interest rate mode designation command; an arithmetic means, responsive to said input means, for performing entered operational commands on entered data and generating a result, including performing interest rate dependent operational commands on entered data in the designated interest rate specification mode; and an output means for generating an operator perceivable indication of said result generated by said arithmetic means. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification