CN101377766B - 具备不等式计算功能的计算器 - Google Patents
具备不等式计算功能的计算器 Download PDFInfo
- Publication number
- CN101377766B CN101377766B CN2008102149570A CN200810214957A CN101377766B CN 101377766 B CN101377766 B CN 101377766B CN 2008102149570 A CN2008102149570 A CN 2008102149570A CN 200810214957 A CN200810214957 A CN 200810214957A CN 101377766 B CN101377766 B CN 101377766B
- Authority
- CN
- China
- Prior art keywords
- separating
- display
- inequality
- pattern
- sign
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F15/00—Digital computers in general; Data processing equipment in general
- G06F15/16—Combinations of two or more digital computers each having at least an arithmetic unit, a program unit and a register, e.g. for a simultaneous processing of several programs
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F15/00—Digital computers in general; Data processing equipment in general
- G06F15/02—Digital computers in general; Data processing equipment in general manually operated with input through keyboard and computation using a built-in program, e.g. pocket calculators
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Software Systems (AREA)
- Computing Systems (AREA)
- Calculators And Similar Devices (AREA)
Abstract
Description
Claims (14)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007226144 | 2007-08-31 | ||
JP2007226144A JP4325712B2 (ja) | 2007-08-31 | 2007-08-31 | 不等式計算機 |
JP2007-226144 | 2007-08-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101377766A CN101377766A (zh) | 2009-03-04 |
CN101377766B true CN101377766B (zh) | 2010-09-22 |
Family
ID=40409472
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2008102149570A Active CN101377766B (zh) | 2007-08-31 | 2008-08-29 | 具备不等式计算功能的计算器 |
Country Status (3)
Country | Link |
---|---|
US (2) | US8332445B2 (zh) |
JP (1) | JP4325712B2 (zh) |
CN (1) | CN101377766B (zh) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5892094B2 (ja) * | 2013-03-21 | 2016-03-23 | カシオ計算機株式会社 | グラフ表示制御装置、グラフ表示制御方法及びグラフ表示制御プログラム |
CN114115630A (zh) * | 2021-11-25 | 2022-03-01 | 得力集团有限公司 | 计算器中多项不等式方程的工作方法及计算器 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5739823A (en) * | 1994-08-12 | 1998-04-14 | Casio Computer Co., Ltd. | Graph display devices |
JP3674068B2 (ja) | 1994-12-22 | 2005-07-20 | カシオ計算機株式会社 | グラフ表示装置 |
JP3975588B2 (ja) * | 1998-11-19 | 2007-09-12 | カシオ計算機株式会社 | 電子機器および記憶媒体 |
JP4244434B2 (ja) | 1998-12-24 | 2009-03-25 | カシオ計算機株式会社 | 不等式処理装置及び記憶媒体 |
US6867777B2 (en) * | 2000-12-20 | 2005-03-15 | Texas Instruments Incorporated | Tracing and storing points of interest on a graphing calculator |
US20020078107A1 (en) * | 2000-12-20 | 2002-06-20 | Miller Michelle A. | Graphing calculator with X=editor for equations and inequalities |
US6771252B2 (en) * | 2000-12-20 | 2004-08-03 | Texas Instruments Incorporated | Shading of inequalities on a graphing calculator |
US20060024649A1 (en) * | 2004-07-30 | 2006-02-02 | Vernon David H | Handheld math problem solving device |
-
2007
- 2007-08-31 JP JP2007226144A patent/JP4325712B2/ja active Active
-
2008
- 2008-08-04 US US12/185,432 patent/US8332445B2/en not_active Ceased
- 2008-08-29 CN CN2008102149570A patent/CN101377766B/zh active Active
-
2014
- 2014-12-10 US US14/566,259 patent/USRE46215E1/en active Active
Also Published As
Publication number | Publication date |
---|---|
CN101377766A (zh) | 2009-03-04 |
US20090064032A1 (en) | 2009-03-05 |
JP2009059183A (ja) | 2009-03-19 |
US8332445B2 (en) | 2012-12-11 |
JP4325712B2 (ja) | 2009-09-02 |
USRE46215E1 (en) | 2016-11-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20090304 Assignee: CASIO Electronic Technology (Zhongshan) Co., Ltd. Assignor: CASIO Computer Co., Ltd. Contract record no.: 2015990000082 Denomination of invention: Computing machine with an inequality computation function Granted publication date: 20100922 License type: Common License Record date: 20150227 |
|
EC01 | Cancellation of recordation of patent licensing contract | ||
EC01 | Cancellation of recordation of patent licensing contract |
Assignee: CASIO Electronic Technology (Zhongshan) Co., Ltd. Assignor: CASIO COMPUTER Co.,Ltd. Contract record no.: 2015990000082 Date of cancellation: 20200827 |