中文说明：
最优化理论与方法课本算法matlab实现，二次插值法，包括抛物线插值和三点二次插值，具体使用方法详见程序说明。
English Description：
The optimization theory and method textbook algorithm is realized by MATLAB, and the quadratic interpolation method includes parabolic interpolation and three-point quadratic interpolation. See the program description for the specific application method