Excel has over 475 formulas in its Functions Library, but we've selected the most popular, from date and time functions to mathematics and simple data manipulation.

You can sum cells across multiple sheets in Excel. This article presents steps for Adding single-cell values or Adding values in the range of cells.

For example, if you wanted to find the total of all the data in column C, you would enter "SUM (C:C)" in the formula field. Press "Enter" to run the formula and calculate the sum of the selected ...

Trigonometric sums and summation formulas have long served as essential tools for elucidating periodic phenomena across mathematics and the physical sciences.