Phasegram (1 of 2) (image) University of Vienna Caption The phase space intersections are then plotted onto a graph at equally spaced time intervals (Fig. 3). The resulting phasegram is quite easy to interpret: Time is on the (horizontal) x-axis. The number and stability of lines perpendicular to the (vertical) y-axis indicates the system state at a particular point in time: one line: no oscillation (stasis) two lines: periodic oscillation four, six, eight etc. lines: period doubling, subharmonic vibrations no continuous lines, rugged appearance: irregular system behavior, indicator for chaos Credit Christian Herbst Usage Restrictions The image may only be used with appropriate caption or credit. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.