It is not uncommon in science and mathematics to have a collection of data points

(*x*_{1}, *y*_{1}),(*x*_{2}, *y*_{2}),...,(*x*_{n}, *y*_{n})

for which we believe there is a functional relationship between the

- Interpolation

- When the data is approximate
- Fitting a line to data
- Fitting a cubic to data
- Fitting other types of funtions
- Fitting a circle
- Robust fitting
- A nod toward statistics

2002-08-29