中文说明：ISOMAP算法，包括dfun.m dijk.m isomap.m l2_distance.m等等等等，一种流形学习算法（很好用，本人编译运行并仿真实现过）
English Description：
Isomap algorithm, including dfun. M Dijk. M Isomap. ML2_ Distance. M and so on, a manifold learning algorithm (very easy to use, I compile and run and simulate the implementation)