pong~ for performing modulo arithmetic, as well as foldover or wraparound distortion. pong either folds or wraps its input within the range of a lo val and a hi val. The optional arguments are . mode 0 is fold, mode 1 is wrap. The default mode is fold. The default range is zero to one. If hi val is greater than lo val, their behavior is swapped. All inlets accept both signals and floats. The mode message may be used to switch between fold and wrap mode. It is useful for performing modulo arithmetic, as well as foldover or wraparound distortion.

from the library : MSP Format : External Environment : msp commercial Max 4.x http://www.cycling74.com