Calculation apparatus and storage medium in which calculation program is stored
US7941473B2 · kind B2 · utility
1Cited by
2References
6Claims
0Family size
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Key dates
| Filing date | Mar 29, 2007 |
| Grant date | May 10, 2011 |
| Priority date | — |
| Expiry date | Mar 9, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F15/16
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a graphing calculator, a decimal calculation unit obtains a calculation result of an arithmetic expression input by an input device to an n-th digit and an (n+m)-th digit. When the values from the most significant digit to an (n+1)-th digit in the (n+m)-digit calculation result are zero, with respect to an addition or subtraction, the CPU corrects an n-digit calculation result of the addition or subtraction to zero.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.