改程序产生一个广义的奇异值分解。对于奇异方程而言，改方法非常有效。可以迅速求解方程。CGSVD Compact generalized SVD of a matrix pair in regularization problems-Change the program to generate a generalized singular value decomposition. For the singular equation, the change method is very effective. Equations can be solved quickly. CGSVD Compact generalized SVD of a matrix pair in regularization problems