... 平面构形 plane configuration 平面极坐标 plane polar coordinates 平面几何(学) plane geometry ...
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极坐标系•速度与加速度 一、极坐标系 (plane polar coordinates) 1.极坐标系的建立: 在参考系上取点O,引有刻度的射线OX称为极轴(有方向的),建成极坐标系。
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polar coordinates in plane [数] 平面极坐标
So the idea of spherical coordinate is you're going to polar coordinates again in the rz plane.
所以说球坐标系,其实就是在rz平面再建立一个极坐标。
Remember that polar coordinates are about replacing x and y as coordinates for a point on a plane by instead r, r and theta,which is the angle measured counterclockwise from the positive x-axis.
极坐标是关于r,θ的,用r,θ代替平面上一点的x,y坐标,是从原点到那一点的距离,,which,is,the,distance,from,the,origin,to,a,point,θ是由x轴逆时针旋转,而得到的夹角。
Understand what the differences are between polar coordinates and the Cartesian plane.
了解之间的差异极坐标和直角平面。
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