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 The Oracle ATAN Function      [Return To Index] Jump to:  

Term: ATAN

Definition:
The Oracle ATAN function returns the arc tangent of n. Inputs are in an unbounded range, and the return value is given in radians, and are in the range of -pi/2 to pi/2.

Example Usage:

select ATAN(1) from dual;


The example above would return:

.785398163




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