About the Constants Dialog Box
Access this dialog box from the Expression Definition dialog box, or when creating a user-defined measure in the Measure Definition dialog box. Use this dialog box to select the constants in the table or add parameters to your expressions:
|
Constants
|
Value
|
|---|---|
|
pi
|
3.14159
|
|
e
|
2.71828
|
Click 
to add a predefined parameter as a constant. The Select Parameter dialog box opens listing acceptable parameters in a read-only table. When you select a parameter, the parameter name and its current value appear in the list. Keep the following in mind when using parameters:
to add a predefined parameter as a constant. The Select Parameter dialog box opens listing acceptable parameters in a read-only table. When you select a parameter, the parameter name and its current value appear in the list. Keep the following in mind when using parameters:• The parameter type must be an integer or a real number.
• The parameter name must contain only alphanumeric characters, underscores (_), or colons (:). These can be in any language, including Asian-language characters.
• The parameter name must not include spaces.
• The parameter name cannot be any of the reserved words e, pi, or t.
• You can add parameters from any level-top-level assembly, sub-assembly, or component.
• The value of the constant is the value of the parameter at the beginning of the analysis. The value does not change during the analysis.
• If you change a parameter value after including it in the user-defined function, the value in the profile of your force motor, servo motor, or force/torque, or in your user-defined measure expression is updated.
• If you include a parameter in a user-defined expression, and then delete it, the measure, servo motor, force motor, or force/torque based on that expression becomes incomplete.
For more information on creating parameters, search for parameters in the Help Center.
Click 
to remove a selected constant or parameter that you previously added as a constant from the table.
to remove a selected constant or parameter that you previously added as a constant from the table.After you close the Constants dialog box, the parameter name appears as part of your expression definition on the Expression Definition or Measure Definition dialog box.