Anti-tangent, cotangent, secant and cosecant function demonstrating and graph drawing instrument

An image drawing and function technology, applied in the field of teaching instruments, can solve the problems of low applicability, insufficient functions, and inability to draw function images, etc., and achieve the effect of strong applicability, simple operation, and wide application

Active Publication Date: 2015-02-04
润桐(苏州)技术服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In summary, the device has the following deficiencies: the right-angle mapping relationship of the inverse trigonometric function cannot be demonstrated through the translational movement of the independent variable, the drawn image is only a trigonometric function curve, and the arctange

Method used

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  • Anti-tangent, cotangent, secant and cosecant function demonstrating and graph drawing instrument
  • Anti-tangent, cotangent, secant and cosecant function demonstrating and graph drawing instrument
  • Anti-tangent, cotangent, secant and cosecant function demonstrating and graph drawing instrument

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Embodiment Construction

[0028] Below in conjunction with accompanying drawing, the present invention will be described in further detail:

[0029] Such as figure 1 As shown, the cotangent and cosecant function demonstration and image drawing instrument includes a bracket 1, a demonstration device 2, a drawing mechanism 3, a drawing board 6, a pull rod 5, and a soft rope 4. The demonstration device 2 is installed on the left vertical pole 12 of the bracket 1 and on the glideway and the upper slideway; the drawing mechanism 3 is connected with the right vertical rod 13, the glideway, the upper slideway and the guide rod 18 on the support 1 through two guide rods; The mechanism 3 is connected; the movable drawing board 6 is fixed on the suction cup 111 at the rear end of the support 1, on which the paper jammer 61 is housed.

[0030] Such as figure 2 As shown, the cotangent and cosecant function demonstration and the support 1 of the image plotting instrument are composed of a foot 11, a left vertica...

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Abstract

The invention discloses an anti-tangent, cotangent, secant and cosecant function demonstrating and graph drawing instrument which is made according to a rectangular coordinate definition of an anti-trigonometric function and by combining pushing-turning principles with slider-connecting rod characteristics. The instrument comprises a support, a demonstrating device, a drawing mechanism and a drawing board, the demonstrating device is mounted on a lower slideway and an upper slideway of uprights, and the drawing mechanism is connected with the uprights, the lower slideway, the upper slideway and a guide rod, and connected with the demonstrating device through a soft rope and a pull rod. The above components are combined by adopting different assembly modes, anti-tangent, cotangent, secant and cosecant function relations can be demonstrated visually by only pushing a handle on the push rod, continuous and accurate function graphs can be drawn on the drawing board, paper or any fixed planes, and type forms of anti-tangent, cotangent, secant and cosecant can be demonstrated while corresponding graphs can be drawn. The drawing instrument can be used in a classroom, a drawing room, a construction site and a self-study place for students and is high in drawing efficiency, clear and accurate in graph, simple to operate, convenient to carry and complete in function.

Description

[0001] technical field [0002] The invention relates to a teaching instrument, which is a device for transforming translational push-rotation motion into orthogonal composite motion, in particular an arccotangent and cosecant function demonstration and image drawing instrument. Background technique [0003] With the development and technological progress of my country's secondary and higher education, teachers' teaching, student learning, engineering design, on-site construction, etc. all need fast, convenient and multi-functional drawing instruments. Inverse trigonometric functions occupy a considerable proportion in middle and college mathematics. By visually demonstrating the relationship between functions and drawing corresponding images, it can not only reduce the teaching pressure of teachers, but also help students understand and comprehend. It is an important means to improve the teaching quality of inverse trigonometric functions. Engineering and technical personn...

Claims

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Application Information

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IPC IPC(8): G09B23/04B43L11/00
CPCB43L11/00G09B23/04
Inventor 王书营
Owner 润桐(苏州)技术服务有限公司
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