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说明：  C高级编程，是提高的好书，希望大家认真阅读，我还会陆续发资料(C high-level programming)

用Ziegler--Nichols整定公式来求P,PI,PID的个参数，其中Gc是校正器的传递函数,kp为比例系数， Ti为积分时间常数，Td为微分时间常数，输入参量vars为带迟滞--惯性环节模型的KT τ(With Ziegler- Nichols tuning formula to seek P, PI, PID' s parameters, which Gc is the corrector transfer function, kp is proportional coefficient, Ti the integral time constant, Td for the differential time constant, input parameters vars as with hysteresis- inertia model of the KT τ)

this is adder subtractor simulation model

Book about neural networks

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A very popular book on MATLAB

MATLAB CODE FOR PYTHON

关于APSK相对半径比的搜索程序，可以找出最优半径比(About APSK relative radius than the search program, you can find the optimal radius ratio)

This piece of code can be used to import text file data of the signature samples, and pre-process them.

shrodinger equation for quantum well in laser