# CN202939858U - 正切函数的反函数演示仪 - Google Patents

## Info

Publication number
CN202939858U
CN202939858U CN 201220716816 CN201220716816U CN202939858U CN 202939858 U CN202939858 U CN 202939858U CN 201220716816 CN201220716816 CN 201220716816 CN 201220716816 U CN201220716816 U CN 201220716816U CN 202939858 U CN202939858 U CN 202939858U
Authority
CN
China
Prior art keywords
function
glass plate
tan
inverse function
glass plates
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.)
Expired - Fee Related
Application number
CN 201220716816
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English (en)
Inventor

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jinhua Polytechnic
Original Assignee
Jinhua Polytechnic
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Publication date
Application filed by Jinhua Polytechnic filed Critical Jinhua Polytechnic
Priority to CN 201220716816 priority Critical patent/CN202939858U/zh
Application granted granted Critical
Publication of CN202939858U publication Critical patent/CN202939858U/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

## Landscapes

• Instructional Devices (AREA)

## Claims (2)

1.一种正切函数的反函数演示仪，主要由底座、插槽框、玻璃板构成，其特征是：所述插槽框(2)连接于所述底座(1)上面，所述插槽框(2)具有相互垂直的底槽和侧槽，所述玻璃板(3)为矩形，所述玻璃板上具有平面直角坐标系以及正切函数y＝tan x在区间

2.根据权利要求1所述的正切函数的反函数演示仪，其特征是：所述玻璃板(3)具有相同的两块。
CN 201220716816 2012-12-06 2012-12-06 正切函数的反函数演示仪 Expired - Fee Related CN202939858U (zh)

## Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220716816 CN202939858U (zh) 2012-12-06 2012-12-06 正切函数的反函数演示仪

## Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220716816 CN202939858U (zh) 2012-12-06 2012-12-06 正切函数的反函数演示仪

## Publications (1)

Publication Number Publication Date
CN202939858U true CN202939858U (zh) 2013-05-15

# Family

## Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220716816 Expired - Fee Related CN202939858U (zh) 2012-12-06 2012-12-06 正切函数的反函数演示仪

## Country Status (1)

CN (1) CN202939858U (zh)

## Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104332085A (zh) * 2014-11-25 2015-02-04 南京工业职业技术学院 反正余切正余割函数演示及图像绘制仪
CN104809941A (zh) * 2015-05-19 2015-07-29 上海市第一中学 一种实物演示教具

## Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104332085A (zh) * 2014-11-25 2015-02-04 南京工业职业技术学院 反正余切正余割函数演示及图像绘制仪
CN104809941A (zh) * 2015-05-19 2015-07-29 上海市第一中学 一种实物演示教具

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## Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130515

Termination date: 20131206