发明名称 |
Tracing and storing points of interest on a graphing calculator |
摘要 |
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.
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申请公布号 |
US6867777(B2) |
申请公布日期 |
2005.03.15 |
申请号 |
US20000742902 |
申请日期 |
2000.12.20 |
申请人 |
TEXAS INSTRUMENTS INCORPORATED |
发明人 |
MILLER MICHELLE A.;ZHANG JIAN;HOSEA MICHAEL E. |
分类号 |
G06F15/02;G06F17/00;G09G5/00;(IPC1-7):G09G5/00 |
主分类号 |
G06F15/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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