数值积分MATLAB代码，包含4种数值积分方法，分别为复化梯形、复化抛物线、梯形逐次分半、抛物线逐次分半。且编写采用向量化思维效率高、代码简洁。-Numerical integration MATLAB code, including four kinds of numerical integration methods are Trapezoidal, Compound Parabola trapezoid successive half parabolic successive half. And prepared to quantify the use of high-efficiency thinking, concise code.