Please enable Java for an interactive construction (with Cinderella).
Challenge: characterize the ZigZags obtainable from repeated use of absolute value and subtraction.
To augment a sequence, click & hold Augment Seq and type a number.  To start a new sequence, click New Sequence, then Augment as desired
Drag the slider point down to animate the next function                                                  Created by John Mason 2010 with Cinderella