The PI function is a Math & Trigonometry Function. Learn how to use the PI function in Excel, or how to multiply by PI, using this tutorial.

Formulas are powerful tools for performing calculations and analyzing data in Excel. In this beginner’s guide, you’ll learn how to use formulas and explore some popular built-in functions.

Excel has built-in functions for sine and cosine, the two core trigonometric functions, and for hyperbolic sine and hyperbolic cosine, their hyperbolic counterparts. It also has built-in functions ...

If your argument is in the degrees multiply by PI()/180 or use the Radian function to convert it to radians. In the cell you want to place the result, type =TAN(30*PI()/180) and press Enter. The ...