1.梯形求积法 2.辛普森求积法 3.龙贝格求积法 4.反常积分 5.高斯求积法 6.三重积分-1. Trapezoid quadrature method 2. Simpson quadrature method 3. Romberg quadrature method 4. Abnormal points 5. Gaussian quadrature method 6. Triple integral