Specify settings for calculating formulas when you change the associated data or save a project or worksheet. Minitab uses the options you set here each time you assign a formula to a column in the worksheet. The changes you make to the defaults remain until you change them again, even after you exit Minitab.
 Calculation

 Automatic: Calculate formulas automatically every time the associated data change.
 Manual: Calculate formulas manually.
 Calculate Before Saving Project or Worksheet

 Always calculate the formulas: Minitab automatically calculates the formulas when you save a project or worksheet.
 Never calculate the formulas: Minitab doesn't calculate the formulas.
 Ask whether or not to calculate the formulas: Minitab asks you whether to calculate the formulas when you save a project or worksheet.