Previous calculation reuse in a calculator
US7272621B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 8, 2003 |
| Grant date | Sep 18, 2007 |
| Priority date | — |
| Expiry date | May 12, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F15/02
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of reusing an expression in a hand-held calculator and corresponding apparatus therefore are described. At least one user-entered expression is received and displayed. The user-entered expression is evaluated and the result displayed. A first user input requesting reuse of one of the previously displayed expressions is received and one of the previously displayed expressions is displayed for editing by the user. A second user input requesting reuse of one of the previously displayed expressions is received and one of the previously displayed expressions is displayed for editing by the user at the same time as the previously displayed expression responsive to the first user input.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.