... trigger function 触发函数 trigonometrical function 三角函数 triply periodic function 三周期函数 ...
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inverse trigonometrical function [数] 反三角函数
It asks the counter-tangent to the synchro signaltable look-up, is avoids appearing the tangent value to appear theinfinity,360°divisions is 8 regions, only demand 0-45°counter-tangent values, according to trigonometrical function relations definite angle.
对自整角机信号查表求反正切，为避免出现正切值出现无穷大，把360°划分为8个区域，只需求得0～45°的反正切值，根据三角函数关系确定角度。
参考来源 - 基于单片机的船舶设备信号采集及处理系统·2,447,543篇论文数据，部分数据来源于NoteExpress
Trigonometrical function in the teaching of mathematics in secondary schools, have a decisive position.
三角函数的教学在中学数学教学中有着举足轻重的地位。
In this paper, the deflection and stress function in terms of trigonometrical function and polynomial expression are first proposed.
本文首先选择由三角函数和多项式组成的挠度函数和应力函数。
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