elasticOut        171 src/swfc-history.c 		case IF_ELASTIC_OUT: return elasticOut(fraction, p1, p2 - p1, inter->amplitude, inter->bounces, inter->damping);
elasticOut        179 src/swfc-interpolation.c     return elasticOut(2 * fraction - 1, start + delta / 2, delta / 2, amplitude, bounces, damping);
elasticOut         99 src/swfc-interpolation.h float elasticOut(float fraction, float start, float delta, float amplitude, int bounces, float damping);