In order to make a simple plot in the SDE one may use the predefined object "thePlot" actually an instance of PlotFrame class. import java.text.*; x=linspace(0.0, 6.0*PI, 10000) f={sin(it)} thePlot.addFunction(new plotfunction(x,f as DoubleFunction)) thePlot.setTexfontsize(20) thePlot.setFormatXAxis(new DecimalFormat("0.###")) thePlot.setFormatYAxis(new DecimalFormat("0.######E0")) thePlot.show() To use a different PlotFrame, one just need to initialize it as a new variable, that is: anotherPlot = new PlotFrame()