- To calculate the
**derivative**of a one-variable function or**partial derivative**of a multi-variable function F with respect to a variable, type in the function and the variable in the boxes provided and press**Calculate Derivative**. - The
**derivative**will be displayed on a new panel. You can then calculate the**derivative**of it or of its primitive(s) with respect to any variable by proceeding as above on the relevant panel. - The label, e.g.,
**F**_{xy}means**derivative**of**F***with respect to x***and then***with respect to y*.

Close any panel by pressing x.