椭圆坐标系是一种二维正交坐标系。其坐标曲线是共焦的椭圆与双曲线。椭圆坐标系的两个焦点的直角坐标 (x,y),通常分别设定为 (-a,0) 与 (a,0),都处于直角坐标系的 x-轴。
首次在射影坐标系下对亏格为3的超椭圆曲线密码体制推导了无需求逆的明确公式。
For the first time, the inversion-free explicit formulae are derived for genus 3 HECC in projective coordinate system.
斜椭圆弧在原坐标系中的每个象限的轨迹并不是单调函数,因此不能按各个象限进行插补。
The diagonal ellipse arc in each quadrant of primary reference frame is not a monotonic function, so it is impossible to implement interpolation according to each quadrant.
在直角坐标系中分别表示出了均匀带电椭圆形环在中心轴线上任意位置处的电势及电场。
In the rectangular coordinate system, we express the electric field intensity and different position electric field energy of the elliptical ring with positive electric charge in the central axis.
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