CN203118293U - Polar coordinate demonstrate frame for advanced mathematics - Google Patents
Polar coordinate demonstrate frame for advanced mathematics Download PDFInfo
- Publication number
- CN203118293U CN203118293U CN 201320152421 CN201320152421U CN203118293U CN 203118293 U CN203118293 U CN 203118293U CN 201320152421 CN201320152421 CN 201320152421 CN 201320152421 U CN201320152421 U CN 201320152421U CN 203118293 U CN203118293 U CN 203118293U
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- CN
- China
- Prior art keywords
- plate body
- plate
- polar coordinates
- slide block
- polar coordinate
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- 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.)
- Expired - Fee Related
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- Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
Abstract
The utility model relates to a polar coordinate demonstrate frame for advanced mathematics and belongs to teaching aids. The polar coordinate demonstrate frame is composed of a plate a and a plate b, Archimedes spiral coordinates are engraved on the plate a, and polar coordinates are engraved on the plate b, and the plate and the plate b are connected through more than one hinges. The polar coordinate demonstrate frame for advanced mathematics is simple in structure and convenient to use and carry, can be unfolded and mounted on the wall during use and can be folded to be a suitcase after use, and is simple to manufacture and easy to implement, and handles of the suitcase can be hanging rings, and normal teaching and writing of teachers are not affected.
Description
Technical field
The utility model relates to the teaching appurtenance, relates in particular to a kind of polar coordinates demo rack for higher mathematics.
Background technology
Polar coordinates are often related in university's higher mathematics, very abstract of polar coordinates, must express with modes such as figures, could make that the student accepts intuitively, he can and rectangular coordinate system change mutually, can utilize polar coordinate system to calculate double integral in the higher mathematics, calculate spiral of Archimedes etc.But do not have at present special-purpose polar coordinate system teaching aid in Teaching in University, the teacher one is not up to standard two to be losing time very when drawing coordinate system, increases many burdens to teachers ' teaching.
Summary of the invention
The utility model is intended at the deficiency that exists in the background technology, and a kind of polar coordinates demo rack for higher mathematics that proposes.
A kind of polar coordinates demo rack for higher mathematics of the present utility model is to be made of plate body a and plate body b, is carved with the spiral of Archimedes coordinate at plate body a, is carved with polar coordinates on the plate body b, is connected by more than one hinge between plate body a and the plate body b.Wherein, the transverse axis on the spiral of Archimedes coordinate and the longitudinal axis are groove slideway a, are equipped with plural slide block a on each groove slideway a, are connecting lines a between the slide block a; Uniform grid in length and breadth on the polar coordinates, grid is the groove slideway b that communicates in length and breadth, is provided with plural slide block b in the groove slideway b, is connecting lines b between the slide block b.
As further improvement of the utility model, plate body a top is provided with carries hand a, and plate body b top is provided with carries hand a.
A kind of polar coordinates demo rack for higher mathematics of the present utility model, simple in structure, easy to use, be convenient for carrying, opening it during use hangs on the body of wall, after using up it is closed into a hand and carries the case shape, carry hand and can be used as the link use, do not influence normally giving lessons of teacher and write, make simply, realize easily.
Description of drawings
Fig. 1 is deployed configuration floor map of the present utility model;
Fig. 2 is the back structural representation that closes of the present utility model.
Embodiment
Below in conjunction with accompanying drawing 1 and 2 pairs of a kind of polar coordinates demo racks for higher mathematics of the present utility model of accompanying drawing, be described further.
A kind of polar coordinates demo rack for higher mathematics of the present utility model, be to be constituted by plate body a1 and plate body b2, be carved with spiral of Archimedes coordinate 3 at plate body a1, be carved with polar coordinates 4 on the plate body b2, connected by more than one hinge 5 between plate body a1 and the plate body b2, two plate bodys can be amounted to or open.Wherein, the transverse axis on the spiral of Archimedes coordinate 3 and the longitudinal axis are groove slideway a6, are equipped with plural slide block a7 on each groove slideway a6, are connecting lines a8 between the slide block a7; Uniform grid in length and breadth on the polar coordinates 4, grid is the groove slideway b9 that communicates in length and breadth, is provided with plural slide block b10 in the groove slideway b9, is connecting lines b11 between the slide block b10.Plate body a1 top is provided with carries hand a12, and plate body b2 top is provided with carries hand a13, conveniently carries and takes and suspension.
The slip that slide block a7 and slide block b10 are can be in groove is rolled into random is formed aim curve and is expressed the needs of giving lessons.
Claims (2)
1. polar coordinates demo rack that is used for higher mathematics, be by plate body a(1) and plate body b(2) constitute, it is characterized in that plate body a(1) on be carved with spiral of Archimedes coordinate (3), plate body b(2) be carved with polar coordinates (4) on, plate body a(1) and plate body b(2) between connected by more than one hinge (5); Wherein, the transverse axis on the spiral of Archimedes coordinate (3) and the longitudinal axis are groove slideway a(6), each groove slideway a(6) on be equipped with plural slide block a(7), slide block a(7) between connecting lines a(8); Polar coordinates (4) are gone up uniform grid in length and breadth, and grid is the groove slideway b(9 that communicates in length and breadth), groove slideway b(9) in be provided with plural slide block b(10), slide block b(10) between connecting lines b(11).
2. a kind of polar coordinates demo rack for higher mathematics as claimed in claim 1 is characterized in that plate body a(1) top is provided with and carries hand a(12), plate body b(2) top is provided with and carries hand a(13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320152421 CN203118293U (en) | 2013-03-30 | 2013-03-30 | Polar coordinate demonstrate frame for advanced mathematics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320152421 CN203118293U (en) | 2013-03-30 | 2013-03-30 | Polar coordinate demonstrate frame for advanced mathematics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203118293U true CN203118293U (en) | 2013-08-07 |
Family
ID=48898617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320152421 Expired - Fee Related CN203118293U (en) | 2013-03-30 | 2013-03-30 | Polar coordinate demonstrate frame for advanced mathematics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203118293U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021139839A3 (en) * | 2021-04-09 | 2022-02-24 | 郑州航空工业管理学院 | Demonstration system for high-level mathematical parametric equations and polar coordinates equations |
-
2013
- 2013-03-30 CN CN 201320152421 patent/CN203118293U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021139839A3 (en) * | 2021-04-09 | 2022-02-24 | 郑州航空工业管理学院 | Demonstration system for high-level mathematical parametric equations and polar coordinates equations |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20180330 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |