数值分析报告，包括追赶法求解三对角方程、迭代法求非线性方程、曲线拟合、区间逐次分半的复化梯形公式计算积分，题目、代码及运行结果。-Numerical analysis report, including catch-up method for solving tridiagonal equation, iterative method for the nonlinear equations, curve fitting, half of the complex range of successi