-- Posted by BrokenBelief at 6:08 pm on Oct. 10, 2007 I just programmed Simpson's rule into my Ti-89 and it gives me correct answers. Yay for simplifying an excruciatingly tedious math process into a few button strokes.   -- Posted by A Hough at 6:08 pm on Oct. 10, 2007 whats simpsons rule? -- Posted by RossTheHoss69 at 6:09 pm on Oct. 10, 2007 Ahh. I love my '89. I are a jeeniuus with it, too. -- Posted by Guardian at 6:10 pm on Oct. 10, 2007 I only have a scientific calculator I can't program stuff into it... -- Posted by BrokenBelief at 6:11 pm on Oct. 10, 2007 In numerical analysis, Simpson's rule is a method for numerical integration, the numerical approximation of definite integrals. Specifically, it is the following approximation: Yeah, try learning that, and memorizing it.  Not to mention all the math that goes into plugging into that formula.