If Simpson's (parabolic) rule has lower error than using rectangles or trapezoids, why not always use it to estimate definite integrals? - Quora
![Approximating Definite Integrals Using Trapezoidal Riemann Sums and Uniform Partitions | Calculus | Study.com Approximating Definite Integrals Using Trapezoidal Riemann Sums and Uniform Partitions | Calculus | Study.com](https://study.com/cimages/videopreview/videopreview-full/j7a2bmkqrz.jpg)
Approximating Definite Integrals Using Trapezoidal Riemann Sums and Uniform Partitions | Calculus | Study.com
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