1stopt软件具有强大方便的优化，拟合功能，而且易学，界面友好。-1stopt with powerful software to facilitate the optimization, fitting functions, and easy to learn, user-friendly.

1stopt领先的数值分析软件的最新全套讲解教程，已经许多应用实例在教程中-New tutorials explain 1stopt leading full numerical analysis software has many applications in the tutorial examples