# Simpson's Rule

- Author:
- Dr. Doug Davis, 3D

This applet shows three points on a curve separated in by . Straight dotted lines connect the points.
Moving the blue dot will change the location.
Moving the black dots will change the function.
There are three check boxes.

- Trapezoids shows the areas that would be used for trapezoid numerical integration.
- Parabola shows a quadratic equation fit through the three points.
- Simpson's Rule shows the area that would be used for Simpson's rule integration.