Example: If the previous three text fields read Start=500, Stop=1000, and Plot=3, then dstool will calculate 1000 points along a trajectory but will only store the points indexed by 500, 503, 506,..., 998, and 1000 (the final condition is always kept). Setting Plot = k > 1 for mappings may be thought of as studying the kth iterate of the map. For vector fields, setting Plot > 1 is useful when it is necessary to choose a small integration step, but we do not want to see every plotted point.
If the current integrator is a variable step algorithm (e.g., quality-control algorithms and the Bulirsch-Stoer method), then the value shown in the Step Size field is used as an initial step size.