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A linear algebra demonstration device

A technology of linear algebra and demonstration device, applied in the field of mathematics, can solve problems such as inability to switch

Active Publication Date: 2021-01-29
HARBIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional linear algebra demos cannot switch between determinants and matrices

Method used

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  • A linear algebra demonstration device
  • A linear algebra demonstration device
  • A linear algebra demonstration device

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specific Embodiment approach 1

[0030] Combine below Figure 1-9 Illustrating this embodiment, the present invention relates to the field of mathematics, more specifically, a linear algebra demonstration device, comprising a half frame 1 , a double-threaded screw 103 , a limit ring 104 , a sliding piece 105 , a sliding rail seat 3 , and a side seat 301 and trapezoidal slide 302, the present invention can switch between demonstrating determinants and demonstrating matrices when demonstrating linear algebra.

[0031] The upper side of the slide rail seat 3 is provided with a trapezoidal slide rail 302 , and the left and right ends of the slide rail seat 3 are fixedly connected with side seats 301 . The left and right ends are respectively rotatably connected to the two side seats 301, and the left and right ends of the double-threaded screw 103 are fixedly connected to the limit rings 104, and the two limit rings 104 are respectively attached to the outer sides of the two side seats 301. 1 is provided on the ...

specific Embodiment approach 2

[0033] Combine below Figure 1-9 Illustrating this embodiment, the linear algebra demonstration device further includes a convex column 101 and an elastic band 102. The upper and lower ends of the outer side of each half frame 1 are fixedly connected with the convex column 101, and the two ends of the elastic band 102 are respectively tied to two of the convex columns. on column 101. When one end of the elastic band 102 is tied to the upper end of one half frame 1, and the other end of the elastic band 102 is tied to the lower end of the other half frame 1, the straight line position formed by the elastic band 102 is the number on the diagonal of the determinant, which is convenient for observation Find a row of numbers on the diagonal of the determinant.

specific Embodiment approach 3

[0035] Combine below Figure 1-9Illustrating this embodiment, the linear algebra demonstration device further includes a side slat 2, a bracket edge 201, a gear 202, a bottom shaft 203, a fixed seat 204 and a straight edge 206. The lower parts of the two half-frames 1 are fixedly connected with a fixed The seat 204, the side slats 2 are provided with one on the left and right sides, the front and rear sides of each side slat 2 are respectively provided with a square bracket edge 201 and a straight edge 206, and the lower ends of the two side slats 2 are fixedly connected with gears 202, Bottom shafts 203 are fixedly connected to the lower ends of the two gears 202 , the two bottom shafts 203 are rotatably connected to the two fixed seats 204 respectively, and the two half-frames 1 are located between the two side slats 2 . In linear algebra, the left and right sides of the matrix are square brackets, and the left and right sides of the determinant are vertical lines. Then, whe...

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Abstract

The present invention relates to the field of mathematics, more specifically a linear algebra demonstration device, including a half frame, a double-threaded screw, a limit ring, a slide, a slide rail seat, a side seat and a trapezoidal slide rail. The present invention demonstrates linear algebra You can switch between presenting a determinant and presenting a matrix at . The upper side of the slide rail seat is provided with a trapezoidal slide rail, and the left and right ends of the slide rail seat are fixedly connected with side seats. On the two side seats, the left and right ends of the double-threaded screw are fixedly connected to the limit rings, and the two limit rings are respectively attached to the outer sides of the two side seats. The lower sides are fixedly connected with sliding pieces, and the two sliding pieces are all slidably connected on the trapezoidal slide rail, and the left and right ends of the double-threaded screw are respectively matched with the two sliding pieces through threads.

Description

technical field [0001] The invention relates to the field of mathematics, and more particularly to a linear algebra demonstration device. Background technique [0002] Linear algebra is a branch of mathematics that studies vectors, vector spaces, linear transformations, and finite-dimensional systems of linear equations. Vector spaces are an important subject in modern mathematics; thus, linear algebra is widely used in abstract algebra and functional analysis; through analytic geometry, linear algebra can be specifically represented. The theory of linear algebra has been generalized to operator theory. Because nonlinear models in scientific research can usually be approximated as linear models, linear algebra is widely used in natural and social sciences. Traditional linear algebra demos cannot switch between determinants and matrices. SUMMARY OF THE INVENTION [0003] The present invention provides a linear algebra demonstration device, the beneficial effect of which ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09B23/02
CPCG09B23/02
Inventor 马玉秋盛晓娜赵鹏飞
Owner HARBIN UNIV