dan2

a code which serves to form an erlang c table

说明：  最小二乘法的简单应用，以及算法实现，作为参考。(Simple application of least squares, and the algorithm, as a reference.)

数据整理，数据和标签和样本数量之间的匹配，当然也可以用其他方法，仅供参考(Data collation, matching between data and label and sample quantity, of course, other methods can be used, for reference only)

PGPI(NUM,DEN,W,FI,A) plots the stability boundary locus L(KP,KI,W)in the (KP,KI)-plane for an LTI system with transfer function defined by its NUM, DEN coefficients and driven by a PI controller with transfer function, C(s)=kp+(ki/s). Frequency (W) gridding becomes important. Phase Margin, FI, and Gain Margin, A, can be defined. The method works for open loop stable or unstable, minimum or nonminimum phase systems. With Examples. Method and examples used are form "Computation of Stabilizing PI and PID Controllers" by Nusret Tan, Ibrahim Kaya and Dereck P. Atherton. MATLAB release MATLAB 7.5 (R2007b)

matlab po slovensky nieco

说明：  二阶系统的参数辨识，使用matlab实现，差分方程形式(Parameter identification of the second order system, realized by MATLAB, in the form of difference equation)

说明：  主要讨论了QPSK的调制解调原理，分析了它们的调制解调实现过程(Mainly discussed the QPSK modulation and demodulation principle, an analysis of their realization of the process of modulation and demodulation)

计算了贝塞尔函数的一阶导数的零点。 更新BessDerivZerosBisect.m这些变化： 1。允许对m= 0 2。允许用户指定特定的m和k值理想。 3。允许公差输入参数 4。使用一个表的查找能为m和k的小值接近初始化 5。添加错误检查 6。计算衍生w.r.t.以X而不是w.r.t.米（虽然老方法的工作也。）(Calculates the zeros of the first derivatives of Bessel function. Updates BessDerivZerosBisect.m with these changes: 1. Allows for m = 0 2. Allow the user to specify the particular m and k values desired. 3. Allows for a tolerance input parameter 4. Uses a table look-up to get closer initializations for small values of m and k. 5. Adds error checking 6. Computes the derivative w.r.t. to x rather than w.r.t. m (although the old method works, too.))

在matlab这个平台上对平面，立体等单元进行有限元力学分析(Finite element stress analysis in the the matlab platform on the plane, three-dimensional unit)

说明：  using comsol livelink with matlab 计算一维声子晶体中的特征值特征向量(using comsol livelink with matlab calculating the eigenvalues and eigenvectors in 1d phononic strip)