发明授权
US5799295A Constraint-based spreadsheet system capable of displaying a process of
execution of programs
失效
基于约束的电子表格系统，能够显示执行程序的过程
- 专利标题： Constraint-based spreadsheet system capable of displaying a process of execution of programs
- 专利标题（中）： 基于约束的电子表格系统，能够显示执行程序的过程
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申请号： US966741申请日： 1997-11-10
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公开(公告)号： US5799295A公开(公告)日： 1998-08-25
- 发明人: Yasuo Nagai
- 申请人： Yasuo Nagai
- 申请人地址： JPX Kawasaki
- 专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人地址： JPX Kawasaki
- 优先权： JPX5-349605 19931229
- 主分类号： G06F17/24
- IPC分类号： G06F17/24 ; G06F15/18
摘要：
A constraint-based spreadsheet system includes a direction discrimination section, a dependence information generating section, a program execution process information generating section, and a display section. The direction discrimination section discriminates whether constraint information, which corresponds to a formula which is a basic structural element of a program, has direction of calculation. The dependence information generating section generates dependence information between tables and within a table based on the direction of calculation discriminated by the direction discrimination section. The program execution process information generating section generates program execution process information using the dependence information. The display section displays the program execution process information.
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