三角函数值

运用数学原理，给出了在FoxBase＋系统下求三角函数值的计算方法和若干技术参数.该方法实现方便，数值计算精度高，执行速度较快；

Using mathematical principle , some mathematical functions is added to FoxBase + system such as trigonometric functions , random generating function .

一种特殊角三角函数值的快速算法

Fast Algorithm of Trigonometric Function Computation of Specific Angle

在信号处理上采用12点采样的差分傅立叶算法，最后利用泰勒级数计算特殊角的三角函数值，很好地解决了交流信号采集与处理问题。

In signal processing , the differential Fourier of 12 samples algorithm was used , the final stages of the special use Taylor to calculate the trigonometrical values . A very good exchange of signals collection and processing solution .

由于三角函数在主值区间内及边界处都是连续的，因此该方法解决了相位差在主值区间边界处的跳变问题，从而完全消除了相位差跳变引起的数据拟合错误。

Since trigonometric functions are continuous at all points including the boundary of the principal value region , this technique naturally solves the problem of the break of phase differences and eliminates the data match error .

三角函数中的最值问题

On the Problems of the Maximum and the Minimum of Trigonometric Functions

本文应用黄金分割和一些简单的三角知识，对36°、72°、54°等三角函数值进行求解。

The values of triangle function of the angles 36 ° , 72 °, 54 ° etc. are calculated by the Golden Section and simple knowledge on triangle .