是我大四做的计算器用java实现的 有四个功能，排序，矩阵，方程和积分-Math calculator function, there are four features that meet the general computing

内附三次样条插值、拉格朗日插值、积分、傅里叶变换、定态薛定谔方程求解程序,各程序有详细的说明-Included cubic spline interpolation, Lagrange interpolation, integration, Fourier transform, Schrodinger equation solver, a detailed descr iption of each program