一个二维静电场，电位函数为 ，边界条件如题图所示，将正方形场域分成20个正方形网格。有十六个内部网格点。假定16个网格点的初始值为0，试用超松弛法确定16个网格点的电位值。-A two-dimensional electrostatic field, potential function, boundary conditions such as the title shown below, the square field divided into 20 square grid. Sixteen

十六小时八小时工作时间计算，用vb实现自动计算的功能，帮助安排工作时间-Sixteen hours eight hours working time calculation, using VB to realize the automatic calculation function, help to arrange working time

数据转换，信令点编码、十六进制转换十进制、十进制转换二进制、十六进制转换为二进制-Data conversion, signaling point code, sixteen hex decimal, binary decimal sixteen hexadecimal conversion to binary

异或校验工具。十六进制异或值计算。。。。。。。。。。(XOR check tool. Sixteen decimal XOR calculation.)