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Table tennis diameter changes to audience influence research based on mechanics and least square method

机译:基于力学和最小二乘法的乒乓球直径变化对观众影响的研究

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The paper adopts qualitative and quantitative combinative method researching table tennis diameter changes caused influences. At first, it makes physical analysis and mechanical analysis of athletes experience quality, it gets the conclusion that table tennis diameter enlarge causes flight speed slow down, rotation weakens and rebound angle increase. Then, by analyzing audience applauses times and time relations, the paper establishes linear least square method model. On the premise that meet residue squares sum be minimum, apply MATLAB software; it gets audience appreciation quality and table tennis diameters size mathematical relational graph.
机译:本文采用定性和定量相结合的方法研究乒乓球直径变化引起的影响。首先,它对运动员的身体分析和力学分析进行了体验质量的研究,得出的结论是乒乓球直径增大导致飞行速度减慢,旋转减弱和回弹角增大。然后,通过分析观众的掌声与时间的关系,建立线性最小二乘法。在满足残差平方和最小的前提下,应用MATLAB软件;它获得了观众的欣赏质量和乒乓球直径大小的数学关系图。

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