The document explains the calculation options in Excel, detailing how to select formula recalculation modes such as automatic, manual, and iteration. It highlights precision in calculations, noting that Excel uses 15 significant digits, and provides keyboard shortcuts for recalculating sheets. Overall, it serves as a guide on managing and understanding calculation settings in Excel.

1. Calculation Options
Calculation - is the process of computing formulas and then displaying the results as values
in the cells that contain the formulas.
You can select the formula recalculation mode on the
Formulas Tab, in the Calculation Group,
by expanding the Calculation Options:
Calculation Options in Excel: Decide When and What to Calculate
❖ Automatic - recalculation of results occurs in automatic mode
❖ Manual - the recalculation of results does not occur. To recalculate, you must
change the mode to or update forcefully using the keys:
Note:
❖ Iteration - is the repeated recalculation of a worksheet until a specific numeric condition is
met.
❖ Precision - is a measure of the degree of accuracy for a calculation. Excel stores and
calculates with 15 significant digits of precision.
❖ F9 - Calculation of all sheets of all open books.
❖ SHIFT + F9 - calculations on the current sheet of the book.