Functions / Math COS Copy page Copy as markdownThe page as text, ready for a chat View as markdown/docs/functions/cos.md Ask Claude about this pageOpens Claude with this page's address Returns cosine of an angle. Excel: Not checked yetGoogle Sheets: Not checked yetReturns: Number Examples =COS(PI()) Try it in a workbook Result -1 Syntax COS(number) number number required Related ABSReturns absolute value of a number. ACOSReturns arccosine of a number. ACOSHReturns inverse hyperbolic cosine. ACOTReturns the arccotangent of a number. ACOTHReturns the inverse hyperbolic cotangent. ADDAdds two numbers: sheets exposes the + operator as a function.
