基于二叉树实现一元多项式的加法、减法、乘法、除法，并实现算法的优化及对内存的最小使用，将结果存储在原多项式中-Based on a binary tree polynomial addition, subtraction, multiplication, division, and to achieve the optimization algorithm and minimal use of memory, and stores the result in the original polyn

MATLAB求解非线性最小二乘法拟合问题 源程序代码-MATLAB for solving nonlinear least-squares fitting of the source code