User Guide

Chapter 4: Drawing And Vector Effects
To use the Math Expression 2-D Plot commands:
1. Define the mathematical equation using the Categories and Items scroll boxes.
2. Double-click an item to add it to the Expression field.
The lower portion of the dialog box indicates the correct syntax and shows an example
of the expression.
3. Enter values in the range fields. The maximum range must be greater than the minimum
range. You can also enter a value in the “1 Unit of” fields to set a scale.
4. Use the Steps menu to control the quality of the curve.
5. Click OK to create the visual representation.
To save an expression:
1. Click on the menu icon and select Save expression as.
2. In the Save expression as dialog box, enter a name for the expression and click OK.
Saved expressions appear at the bottom of the menu list.
To load a saved expression:
Click on the menu icon and select the expression’s name from the list. The equation appears in the
Expression field.
To delete a saved expression:
1. Click on the menu icon and select Delete expression.
2. In the Delete expression preset dialog box, select the expression you want to delete, and
click OK.
Examples
The following visual representations were created using the Math Expression 2-D Polar Plot dialog
box.
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