Demonstration device for advanced mathematics probability

A technology of advanced mathematics and demonstration devices, applied in the field of mathematical probability, can solve problems such as time-consuming and laborious, and achieve the effects of avoiding time-consuming and laborious, convenient operation and high degree of automation

Inactive Publication Date: 2017-03-01
白浩桢
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a high-level mathematical probability demonstration device, which is used to solve the time-consuming and labor-intensive problem of manually tossing a coin to count the probabilities of heads and tails being equal.

Method used

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  • Demonstration device for advanced mathematics probability
  • Demonstration device for advanced mathematics probability
  • Demonstration device for advanced mathematics probability

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Embodiment Construction

[0024] Figure 1 to Figure 11 As shown, the base 1 is the basis of the present invention, the base is used to install other parts, the base can be a circular or square plastic part, the top of the base is provided with a circular side wall 11, the side wall and the base surround a throwing Space for coins. Such as Figure 11 As shown, several cylinders 2 arranged along the circumference are arranged on the base in the inner cavity of the side wall, and two adjacent cylinders are in contact with each other.

[0025] As shown in FIG. 2 , the cylinder is a cylindrical plastic part, and a first air cylinder 21 fixed on the base is arranged in the cylinder, and an electromagnet 24 is fixed at the free end of the piston rod of the first air cylinder. The outside of the first cylinder is provided with a spring 22, the bottom of the spring is fixed on the base, and a circular top block 23 is fixed on the top of the spring. The outer diameter of the top block is the same as the inner...

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Abstract

The invention discloses an advanced mathematics probability presentation device. The statistical right-side up probability is equal to the statistical reverse-side up probability when coins are manually thrown, and the time-consuming and labor-consuming problem is solved by the device. A plurality of drums are arranged inside side walls; first air cylinders are arranged in the drums; electromagnets are arranged on piston rods of the first air cylinders; springs sleeving the outside of the first air cylinders are arranged in the drums; the upper parts of the springs are fixed with metal convex pieces; an oblique pad is arranged on the upper part of the inner cavity of each drum; a coin throwing space is enclosed by the plurality of drums, and a coin supply assembly is arranged among the drums and the side walls; the coin throwing space is equipped with an end cover which is in a hollow structure, and the upper end of the end cover is opened; the upper part of a pedestal is equipped with a poke rod driven by a motor, and a coin outlet is arranged between the installing end of the end cover and the pedestal. According to the presentation device, the environment is identical when the coins are thrown every time, the precision of testing results and the testing persuasion are ensured, and the device is convenient and simple in operation.

Description

technical field [0001] The invention relates to the technical field of advanced mathematical probability, in particular to a demonstration device for demonstrating that the probabilities of flipping a coin are equal to heads and tails. Background technique [0002] In advanced mathematics, probability is a difficult knowledge point to understand. When tossing a coin, to count the probability that the coin is either heads up or tails up is equal, the statistician needs to hold the coin and throw it into the air, then wait for the coin to fall on the ground, and repeat the above action several times. In this way, it takes a lot of time for the statistician, and it is time-consuming and labor-intensive. Contents of the invention [0003] The purpose of the present invention is to provide a high-level mathematical probability demonstration device, which is used to solve the time-consuming and labor-intensive problem when manually tossing a coin to count the probabilities of h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09B23/02
CPCG09B23/02
Inventor 白浩桢
Owner 白浩桢
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