在程序设计部分主要讨论了在读写函数表达式时，词法分析与语法分析的C＋＋实现方法，这也正是本程序编写的难点与重点。之后介绍了复化求积法和Romberg求积法的编写步骤及方法以及数值积分的实现方法。-in the process of discussing some of the major functions of the reader expression, lexical analysis and parsing of C + + methods, which is precisely wha

龙贝格求积算法，采用龙贝格算法求函数积分，精度较高。-Romberg quadrature algorithm, using Romberg algorithm for function integration and high precision.

简介龙贝格求积公式也称为逐次分半加速法。它是在梯形公式、辛卜生公式和柯特斯公式之间的关系的基础上，构造出一种加速计算积分的方法。-Introduction Romberg quadrature formula is also known as successive half acceleration method. It is the trapezoidal formula, formulas and Cotes formulas Xinbo students based on the rela