发明名称 |
Graphing calculator with X=editor for equations and inequalities |
摘要 |
A graphing calculator (10) or other computer based teaching tool having an X=Editor with equations and inequalities. The calculator (10) is programmed to provide an X=Editor which displays one or more "X=" to allow input of a vertical line equation or inequality. The X=Editor allows the user to input a relational 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 |
US2002078107(A1) |
申请公布日期 |
2002.06.20 |
申请号 |
US20000742035 |
申请日期 |
2000.12.20 |
申请人 |
MILLER MICHELLE A.;ZHANG JIAN |
发明人 |
MILLER MICHELLE A.;ZHANG JIAN |
分类号 |
G06F1/00;G06F15/02;G06T1/00;(IPC1-7):G06F1/00 |
主分类号 |
G06F1/00 |
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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