Simplified field notation allows users to create forms that support custom calculations when users fill out the form. Once a user creates their desired form field select the All Properties Button or Double click on the form field.
Select the Calculate Tab- Simplified Notation – Edit
Create your desired formula based on your form names, ie. if you want textfield2 to equal textfield0 minus textfield1 the formula would read (textfield0-textfield1)
Please note the text field names need to be exactly how they appear in the text file properties. They are case-sensitive. For spaces, it is best to use an underscore instead of an empty space.