这是一段模拟电荷法（scm)的matlab源程序，求解了超高压输电线路下方工频电场，仿真出了离地面1.5m处的二维电场模型，该程序经过验证，准确无误，谢谢。

用DWT实现二维小波变换 二维小波分解 重构图形与原始图像误值-With the realization of two-dimensional wavelet transform DWT wavelet decomposition of two-dimensional graphic reconstruction of the original image with the wrong value

用matlab实现了二维离散余弦变换，内涵多个M文件，使用时请读者注意-Using matlab to achieve the two-dimensional discrete cosine transform, meaning more than M files, use the reader' s attention when you