A line/scatter plot can be created by performing a number of mathematical operations on existing line/scatter plots.

To create a math plot showing the summation stacked as areas in Grapher, complete the steps below:

- Click the
*Graph*in the**Object Manager**to select it. - Click
**Graph Tools | Add to Graph | Math Plot**. By default, a summation plot using each of the applicable plots in the graph will be created. - Click the
*Math Plot*in the**Object Manager**. - In the
**Plot**tab of the**Property****Manager**, click*Edit*in the*Plot equation*field. The**Math Plot**dialog will open. - Adjust the
*Plot equation*using the plot*Variable*in brackets and the listed*Operator*and*Function*options listed. For example to create a stacked area plot:

- Click
*Apply*to view the results on the graph and then click*OK*to close the dialog.

*Updated March 19, 2020*

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