### Fitting a function with five parameters

This example uses the **CURV5P** diagram. This diagram
approximates the function Sin (πt) on the interval 0 to 1. Five line segments
are used in this diagram to get a better fit than what was gotten in CURV2P.VSM
with only two parameters.

As before, the objective function is the integral of the
squared error between the two curves. Starting with all five parameterUnknowns
set to 1, the starting value of the objective function is 0.14. Embed converges
after 109 simulation runs with the minimized value of the objective function at
0.00027.

**Diagram Location:** Examples > Optimize

**Diagram Name:** CURV5P