So, you won't need to know about parametric descriptions of planes on a final, but if you really wanted to, you would think of defining a point on a plane as starting from some given point.
在期末考试中，是用不上两个参数，表示来处理平面的，但如果你一定要用，可以考虑，给定平面上的一个起点。
Another way to do it, of course, would provide actually parametric equations of these lines, get vectors along them and then take the cross-product to get the normal vector to the plane.
当然也有另一种方法，就是用参数方程表示这两条直线，用两条直线的方向向量作外积，从而得到切平面的法向量。
From commonly used equation of calculating plane figure quadrature, formulas of calculating plane figure quadrature by applying curve parametric equation can be deduced.
从由曲线普通方程求平面图形面积的公式出发推出在各种情形下由曲线参数方程求平面图形面积的公式。
A new algorithm for calculating the intersection curves between parametric surface and a plane is presented.
提出了一种参数曲面与平面的精确求交新方法。
The parametric extremum variational principles are deduced for the plane and three dimensional elastic contact problems.
本文给出了平面与空间接触问题的带参变量的变分极值原理。
This paper presents the results of a parametric study to investigate the ultimate strength of sleeve reinforced hollow section T-joints subjected to out-plane bending.
对用套管加强的T型管节点在平面外弯矩作用下的极限强度作了参数化分析。
The sound fields of the parametric line array can be analysed by it. Firstly, the point-source function is expanded into an operator on a plane wave function.
首先将点源函数展开为一个算符对平面波函数的运算，经过计算证明，如果将这个算符对参量阵远场解进行运算，得到的结果即为线源参量阵辐射场的解。
In the parametric design, motion of the swing leg of biped robot is planned into a parabola to keep self balance in lateral plane and avoid coupling error;
通过对迈步腿质心进行抛物线运动规划，使两足机器人在动态步行时达到侧向自平衡，从而消除了前向和侧向模型的偶合误差；
In the parametric design, motion of the swing leg of biped robot is planned into a parabola to keep self balance in lateral plane and avoid coupling error;
通过对迈步腿质心进行抛物线运动规划，使两足机器人在动态步行时达到侧向自平衡，从而消除了前向和侧向模型的偶合误差；
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