The QtiPlot Handbook
Prev | Chapter 5. The Dialogs | Next

# Integrate dialog

This dialog box is opened if you select the Integrate Function... command from the Analysis menu The Function text box allows you to edit the analytical function that will be integrated. The second input field displays the name of the independent variable of the function and is set to x by default. The third parameter is order of the integration: the order 1 corresponds to the trapezoid rule, i.e. the curve is aproximated by a straight line between 2 successive points. If you choose the order 2, three successive points are used and a second order polynome is used to approximate the curve. etc. If you have a large amount of points in your curve, the order 1 is enough.

Figure 5-43. The Integrate... dialog box.

The result of the integration will be given in the The Project Explorer.

Prev | Home | Next
Fast Fourier Transform | Up | The Fit Wizard