## Overview of My Calculations

The My Calculations area enables you to manage and reuse calculations that you create in your workbooks.

When you create calculations, they're stored in the My
Calculations area of the Data Panel, where you
can reuse them in any canvas and visualization in the workbook. For
example, if you have data elements for `height`

and
`width`

, you might calculate
`area`

by multiplying height by width (that
is, `height * width`

). You can reuse the
`area`

calculation in other visualizations in
the workbook.

- In the workbook editor, review existing calculations in the My Calculations area, and select a calculation to display its attributes in the Data Panel.
- To add a calculation to a visualization, drag it from the My Calculations area to the visualization or Grammar Panel.
- Right-click a calculation to its editing options. For example, you might add it to the selected visualization, use it to filter your data, or let Oracle Analytics choose the best visualization type for you (that is, Create Best Visualization).
- To calculate a new value to use in your workbook, click Add, then Calculation to display the New Calculation dialog, where you can specify the details (for example,
`height * width`

). The new calculation is added to the My Calculations area.