The displacement solution is constructed by applying the symmetry of scattering of SH-wave and the method of multi-polar coordinate system.
利用SH散射的对称性和多极坐标方法构造了问题的位移解。
Using the concepts of radial velocity and transversal velocity in polar coordinate system, a problem of pursuant trajectory in kinematics is solved.
利用极坐标系中径向速度与横向速度的概念求解运动学中的一个追线问题。
Using polar coordinate system to set out, the coordinate computing formula and the error of its approximate formula are discussed of any point in line.
本文用极坐标法放样，讨论了线路曲线中任一点坐标计算公式及其近似公式的误差大小。收藏。
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