//Romberg求积法 #include <iostream> #include <fstream> #include <math.h> using namespace std; class romberg { private: int i, j, imax, jmax; double f, h, a, b, term1, term2, **I; public: double fun
//Newton_Cotes闭合积分公式 #include <iostream> #include <math.h> using namespace std; class trapezoidal { private: int n, k; double a, b, f, h, integral, sum; public: double func(double v) { f = 24
本小节求解下述定积分: ∫ 0.7 4 ( c o s ( 2 π x ) e − x + 1.2 ) d x \int_{0.7}^4(cos(2πx)e^{-x}+1.2)\mathrm{d}x ∫0.74(cos(2πx)e−x+1.2)dx 版权声明 本文可以在互联网上自由转载,但必须:注明出处(作者:海洋饼干叔叔)并包含指向本页面的链接。 本文不可以以纸质出版为目的进行改编、
**1. Trapezoidal numerical integration(梯形数值积分) 1. Principle* 【trapz】performs numerical integration via the trapezoidal method. This method approximates the integration over an interval by breaking t