The quadratic map x² + C.

The logistic map Cx(1-x).

The cubic function C x (1 - x²/3).

The quartic function C x² (2 - x²).

The sine function C sin(x).

The cosine function C cos(x).

The exponential function C x e^x.

The tent function .

For comments and suggestions write to Robert L. Devaney at bob@bu.edu