GAMIT中强大的矩阵运算，包括矩阵的压缩存贮，高效求逆算法-GAMIT the powerful matrix operations including matrix compression storage, efficient inverse algorithm

使用C编写的复数矩阵求逆，使用高斯消去法，已经和matlab结果做过对比，无误-Written in C and the complex matrix inverse, using the Gaussian elimination method, has been done and matlab results contrast, correct

LM 算法最小二乘法的概念，最小二乘法要关心的是对应的cost function是线性还是非线性函数，不同的方法计算效率如何，要不要求逆，矩阵的维数。(The concept of the least square method of the lm algorithm, the least square method should be concerned whether the corresponding cost function is a linear or nonlinear funct