Tracing and storing points of interest on a graphing calculator
US6867777B2 · kind B2 · utility
3Cited by
8References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2000 |
| Grant date | Mar 15, 2005 |
| Priority date | — |
| Expiry date | Feb 16, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F15/0275
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A graphing calculator (10) having an X=Editor with inequalities. The calculator (10) is programmed to provide an X=Editor which displays one or more “X=” to allow input of a vertical line inequality. The X=Editor allows the user to input an inequality symbol and a constant for each X, allows the user to select or deselect each X, and a graph function to graph each selected X on the X=Editor display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.