查询词典 tangent function

Firstly, the curvature continuity conditions between two adjacent rational quadratic curve segments are derived. Secondly, an optimal algorithm is presented for solving out the tangent lines at every points of a closed point set in a plane.

首先导出了两相邻二次曲线段间曲率连续的拼接条件，然后提出了求解平面上一个闭的点列中每一点处的切线的最优算法。

First, a map between the cones and tangent surface on C-Bézier curve und two-dimensional plane is found respectively and then a ruled surface between two Bezier curves is constructed and a sufficient condition on its developablity is given.

zier曲线上锥面、切线曲面的展开方法。然后，构造两条空间B？zier曲线上的直纹面，给出了它成为可展曲面的一个充分条件，并通过保角保长原则，将其贴合到平面上。

It is considered that machnism of sand saltation is related to theupward of saltation is conisistent with the tangent line direction of collision point.

关于跃移沙粒的起跃机制问题笔者认为，是因沙粒沿地表运动并发生碰撞而产生的"斜面飞升力"所致，其跃移方向应与碰撞点的切线方向一致。

In terms of covariance analysis, the elliptical splat of sample point is then determined on its tangent plane.

针对点模型的快速高质量绘制问题，提出一种单遍绘制算法。

On the basis of tangent method, Dong Yingmin proposed the secant method for the pulse well test.

Brigham等人对切线法不断改进完善，董映珉在切线法的理论基础上，提出了脉冲试井分析的割线法。

The principles and methods of present tangent method and secant method are also described in the paper.

全压力史拟合方法的理论模型是：地层均质、等厚、无限大，充满弱可压缩流体，考虑井筒中存在表皮效应和井筒存储的影响 3、通过使用有限元法对脉冲试井过程进行了数值分析计算，得到了脉冲试井的不同条件下的理论曲线，提出了脉冲试井数值分析方法。

If the slope of the secant is greater than the slope of the tangent then the curve is inelastic at the point.

如果某个点的切线的斜率小于该点与原点构成的割线的斜率，那么该函数函数在该点上为非弹性。

Increase of 47% in the unconned compression strength compared to increase of 26% in the secant modulus at the maximum stress level, 25% in the secant modulus at half of the maximum stress level, and 23% in initial tangent modulus.

这一变化的数额膨润土10日至15 ％，导致平均增加了47 ％的无侧限抗压强度相比增加了26 ％的割线模量的最高应力水平， 25 ％的割线模量的一半的最大应力水平， 23 ％的初始切线模量。

Apply Newton tangent and secant method to solve...

在matlab中应用牛顿切线法和割线法求解一元多次方程。

I didn't want to sidetrack into that tangent in my article, partially to keep it short, and partially because I'm not familiar myself with just what factors might be involved.

我并不想避开这个切线在我的文章，部分保持短，部分是由于我不熟悉自己只有哪些因素可能参与。

I was just taking her hand, to help her out of a car, and I knew it.

我只是握着她的手，扶她下车，但我知道这一切。

China and South Korea have excoriated Japan over its approval of new school books which they say whitewash the atrocities committed during Japanese occupation, and anti-Japanese protests have been held in Chinese cities. The lingering bitterness over Japan's past imperialism still threatens to mar relations between the big East Asian powers

中国和韩国强烈谴责日本通过新的中学历史教科书，他们认为这一教科书掩盖了日本在其占领期间所犯下的残酷暴行，反日抗议活动在中国数座城市发生，历史上日本帝国主义制造的痛楚无法被忘却，这有可能破坏东亚强国间的关系。