北航数值分析大作业，对给定机翼的数据进行分段现行插值，分段现行二次多项式插值，分段三次多项式插值和三次样条插值，有完整的实验报告-Numerical analysis Beihang big job, given the current sub-wing of data interpolation, the current sub-quadratic polynomial interpolation, sub-cubic polynom