dt = .01; InitGraph(); ScaleWindow(-2.2,-2.6, 3.0, 2.6); DrawAxes(); // Label('Phase plane - limit at 1.0',1,.5); i=-2; j=-2; StepModel(); //executed in StepModel() doPlot(i,j); i+=1; if(i>2){ i=-2; j+=1; } if (j<3){ setTimeout('StepModel()',500); }