Best Bet: Cubic Spline Interpolation

The Theory (Equally Spaced Points)

Example (Strang, p.179)

The Theory (Unequally Spaced Points)

Up to now our x values have been "nice" integer values. We can, however, have x values at any points.

What's Happening Between Two Points (Redux)?

Generalizing to Many Points (Redux)

Example

Up to Interpolation and Splines (Curve Fitting)