The TAN function is a Math and Trigonometry function, and its purpose is to return a tangent of a number or angle. In this post, we show you how to use the TAN function in Microsoft Excel.

On Monday, the company announced that its Copilot AI is now available as an Excel function for Microsoft 365 insiders. That means you can add COPILOT to a formula and then use natural language in a ...

Use a mathematical reference to look up the formula for the secant function, which is the inverse of the cosine of an angle (see link in Resources). Click in cell D2 to enter the secant function ...