计算器上的正切函数用不了了。
证明了与正切函数相关的两个不等式。
Two inequalities related to tangent function are proved in this paper.
二是采用双曲线正切函数柔化输入矢量。
Another is to intenerate the input vectors by hyperbola tangent function.
双曲正弦、双曲余弦和双曲正切函数也会以常见或特殊形式出现在各种计算中。
The sinh, cosh, and tanh functions also all appear in various calculations in special and general relativity.
基于正切函数变换，本文提出了改进型全域基展开法(MGBEM)。
Based on the tangent function transformation, a modified global base expansion method (MGBEM) is proposed.
相对于修正反正切函数模型，能更为合理地预测铁芯深度饱和后的特性。
Compared with modified arc tangent function model, it is more reasonable for predicting the slope of the characteristic of the core at deep saturation.
之后，设计了双曲正切函数的鲁棒补偿项，从而得到一种没有抖振的平滑控制输入。
Then, a robust compensation term is developed in form of hyperbolic tangent function to obtain a smooth control input without chattering phenomena.
针对不同情形，通过恰当地利用双曲正切函数，提出了三种连续有界的协同控制器。
According to different cases, three kinds of continuous and bounded coordination controllers are proposed with the novel use of hyperbolic tangent functions.
根据模糊推理估计集成不确定边界，利用双曲正切函数代替符号函数实现软切换连续控制。
The integration uncertain border value is estimated by fuzzy inference and the soft switch control is accomplished by tanh (x) function replacing SGN (x).
采用了仪表化冲击试验设备和双曲正切函数回归计算的数据处理方法，因而确保了实验结果的准确性。
The advanced instrumented impact test equipment and the method for treating test data with the hyperbolic tangent function ensure the accuracy of results.
在详细分析现有变步长LMS算法的基础上，给出一种以双曲正切函数的改进形式为变步长的LMS算法。
A new variable step size LMS algorithm with improved hyperbolic tangent function is presented, which is derived by the extensive review about some existing LMS algorithms.
利用扩展的双曲正切函数法获得了(2 +1)维长波短波共振相互作用方程的多组新显式精确行波解。
Applying the modified extended tanh-function methods, many types of new explicit traveling wave solutions of the (2 + 1) dimensional long wave-short wave resonance interaction equations are obtained.
针对文家坪磷矿地下开采岩体移动变形问题，给出了用于预测分析地下开采引起地表移动变形的双曲正切函数模型。
A theoretical model for predicting ground displacement and deformation due to mining of phosphate body in Wenjiaping by using hyperbolic tangent function was given in this paper.
然后利用正切锥方向导数定义一类正切锥F凸函数类，并给出了（VP）正切锥真有效解的充分性条件；
Then, we define a class of tangent cone F convexity in terms of the tangent cone directional derivative, and prove the sufficient optimality conditions for (VP).
有它，我们可以使用三角函数来求出两轴的反正切值并计算出角度；
With it, we could use trigonometry to find the inverse tangent of the two axis readings and calculatethe angle.
有它，我们可以使用三角函数来求出两轴的反正切值并计算出角度；
With it, we could use trigonometry to find the inverse tangent of the two axis readings and calculatethe angle.
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