二次插值法求一维优化问题最优解，适合FORTRAN和优化问题初学者学习参考-Quadratic interpolation optimal solution of one-dimensional optimization problem for FORTRAN and optimization beginners to learn

差值求解的fortran，如牛顿插值，Hermite插值等，同时涉及三次样条插值的边界条件-The difference between solving fortran, such as Newton interpolation, Hermite interpolation, while the boundary conditions involving cubic spline interpolation

本程序可用于线性插值,Fortran源码用于插值计算。-Program for linear interpolation.