Excel has over 475 formulas in its Functions Library, from simple mathematics ... over multiple cellsFor example: =SUM(H1+I1*J1-M1*J1. Remember your high school math? If the numbers inside the ...

However, Calc includes dozens of functions that anyone can use, the most basic of which create formulas for basic arithmetic or for evaluating numbers in a range of cells. But before plunging into the ...