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matlab程序设计教程，里面有源代码和PPT是一个相当不错的书，内容丰富，言简意赅适合大家学习和参考。(matlab programming tutorials, source code and PPT which is a very good book, rich in content, concise and comprehensive study and reference for everyone.)

拟牛顿法和最速下降法(Steepest Descent Methods)一样只要求每一步迭代时知道目标函数的梯度。通过测量梯度的变化，构造一个目标函数的模型使之足以产生超线性收敛性。这类方法大大优于最速下降法，尤其对于困难的问题。另外，因为拟牛顿法不需要二阶导数的信息，所以有时比牛顿法(Newton s Method)更为有效。如今，优化软件中包含了大量的拟牛顿算法用来解决无约束，约束，和大规模的优化问题。(The quasi-Newton method and the Steepest Descent Methods only require that each step iterations know the gradient of the objective function. By measuring the change of the gradient, constructing a model of the objective function is sufficient to produce superlinear convergence. This method is much better than the steepest descent method, especially for difficult problems. In addition, because the quasi-Newton method does not require information on the second derivative, it is sometimes more effective than the Newton s Method. Today, the optimization software contains a large number of quasi-Newton algorithm used to solve the unconstrained, constraint, and large-scale optimization problems.)

说明：  c常用函数，适合初学者使用，里面有详细的注释(c common function, for beginners, there are detailed notes)

说明：  通过MATLAB绘制出正弦函数、余弦函数及指数函数的曲线，并加以标注(MATLAB curve drawn by a sine function, cosine, and exponential functions, and to be marked)

长期演进系统，通信链路自动重传情况解析。获取是否自动重传(Long-term evolution system, automatic retransmission of communication links)

IEEE14节点进行牛顿拉弗逊法计算电力系统潮流计算(IEEE14 node calculates Newtonian Raphson method for power flow calculation)

麦克风阵语音增强中时延估计的MATLAB代码(Microphone Array Speech Enhancement in the time-delay estimation of the MATLAB code)

it generate triangular membership function for a fuzzy set

说明：  《MATLAB 7.0编程基础》第6章 （源码实例）主要讲解MATLAB图形基础("MATLAB 7.0 programming foundation" Chapter 6 (source code examples) mainly based on MATLAB graphics)

matlab Code for LCL filter design Algorithem