B

说明：  有限差分法，解决偏微分方程的其中的一种解法(Finite difference method to solve partial differential equations in which a solution)

生成samples.mat文件的相关源程序。需要一百个wav文件输入。(The relevant source files generated samples.mat. Need a hundred wav file input.)

在轴箭头绘制坐标空间是很困难的，因为Matlab的内置函数图工程箭头坐标空间。这个函数的轴到图坐标计算及放置在正确的位置注释箭头。它还提供了一个按钮式功能重新同步线和箭头如果调整轴或人物，或变更线的属性。(Plotting an arrow in axis coordinate space can be difficult, since Matlab s built-in arrow function works in figure coordinate space. This function does the axis-to-figure coordinate calculation and places an annotation arrow in the correct location. It also provides a button-down function to re-sync the line and arrow if you resize the axis or figure, or change the line properties.)

This code calculate the steady seepage fo a concrete dam. The program is written in a manner that you can easily change the problem information. To understand how the program works, run main.m then follow the mentioned subroutines (.m files). There is enough comments in all .m files.

1/4半自动悬架，matlab/simulink仿真(1/4 semi-automatic suspension, matlab/simulink simulation)

解ABCD的四元方程求解ABCD的值，并通过此值计算出电力器件vto，rt的值，从而使并联器件变得简单，有效(Solution ABCD equation solving the value of the ABCD and power devices VTO rt value calculated by this value, so that the the parallel device becomes simple, effective)

OF helpers for mtd.

This program will detect the license plate region with segmentation and extraction and recognition

做DEA用的,功能很强大,大家可以试试看,真的很好用(DEA do use, very powerful, we can try, really well)

说明：  MatLab在工程数学方面的应用,工程数学计算.(MatLab in the application of engineering mathematics, engineering, mathematical calculations.)