ATANOn this pageSyntaxArgumentsReturn TypeExamples Returns the arc tangent of x. Syntax SQLCopyATAN (x) Arguments x: the argument Return Type Float or double. Examples SQLPlaygroundCopySELECT ATAN(1);+--------------------+ | ATAN(1) | +--------------------+ | 0.7853981633974483 | +--------------------+ Last modified: February 24, 2023