ATAN2

ATAN2 helps you return the arctangent value for given coordinates. It provides the tools you need to enter the function accurately, review its syntax, and troubleshoot common calculation issues, making formula work more efficient and helping you accomplish tasks with ease. With ATAN2, you can insert the function through the function dialog, type =ATAN2(...) directly in a cell or formula bar, view the syntax ATAN2(x_num, y_num), and open detailed help for parameter guidance. Whether you're checking parameter types to resolve #VALUE! errors, verifying references and numeric formatting when results seem incorrect, or filling the formula across multiple cells while managing relative and absolute references, ATAN2 helps you stay productive and complete tasks efficiently across different devices and work environments. Choose the documentation below that best matches your needs to learn more.