说明：  关于不完整及不精确矩阵恢复的程序。输入矩阵的稀疏系数、测度矩阵、残缺矩阵和逼近容忍程度即可大概恢复出原矩阵并给出恢复评估系数。
(Incomplete and inaccurate matrix recovery program. Sparse input matrix coefficients measure matrix, incomplete matrix approximation tolerance level you can probably recover the original matrix and gives the coefficient of recovery assessment.)