MAT210 Lesson 18: Splines I
For some functions, a single polynomial is not a good fit, especially if there are different shapes in different regions. An alternative approach is to use piecewise polynomial interpolation , also known a splines.
This introduction is part 1 of 2. Cubic splines are more commonly applied and will be covered in part 2. For now, read these 2008 MACM 316 lecture notes on cubic splines by John Stockie and Stephen Rauch from the Department of Mathematics at Simon Fraser University.