## 29.3. Modifying an Expression

1. In the Expressions tree view, double-click any expression, or right-click an expression and select Edit.

   The Expression details view displays the definition of the expression.

2. Under Definition, modify the expression. For details on using the Definition area, see Definition.

3. Make any desired changes and click Apply.

4. Optionally, select Plot or Evaluate to examine the expression.

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