The Initiating Calculation form allows the user to determine what type of Dytran analysis is to be conducted. This determines which options might be available on subsequent forms.

For Perform Prestress Run the variable part of the Initiating Calculation form is

For Start From Dytran Prestress Run the variable part of the form is.

For Start From MSC Nastran Prestress Run the variable part of the form is

For Initial Metric Method for Airbag Run the variable part of the form is.