... 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 ; 逆变换
natural trigonometrical function 三角函数的真数
trigonometrical function of moltiple angles [数] 倍角的三角函数
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。
Trigonometrical function reflects Yuan Movement and the Movement of mutual conversion and the corresponding linear relationship is the only primary function of the cycle function .
三角函数反映了圆运动和直线运动的相互转化与对应关系，是初等函数中唯一的周期函数。
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