Expression editor
The Expression editor allows you to enter a custom mathematical expression. It offers various
functions, variables and operators for simple calculations, to plot a transfer function or to perform
advanced manipulation of the measured data.
Figure 11-12: Expression editor window
The Expression editor window is structured into four main regions:
1. Expression field- Here you can enter your mathematical expression to be evaluated.
2. Comment field - In this field you can enter a text note for documentation purpose. You could for
example describe the expression you have entered.
3. Status bar - See if your expression has been successfully evaluated or if an error appears. If the
evaluation is successful, you will see a green checkmark icon . If there is an error, the
following icon will be shown:
4. Expression toolbar - Here, you can find the available variables, operators, constants and settings
you can use in the expressions.
Enter an Expression
To enter an expression, you must at least:
1. Enter the expression in the expression field
2. Select the right result type
3. Click Apply & Close
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