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	Spreadsheet Mathematical Functions Function Wizard Functions RENO Predefined Functions

ATAN

Description: Returns the arctangent, or inverse tangent, of a number. The arctangent is the angle whose tangent is Number. The returned angle is given in radians in the range -pi/2 to pi/2.

Syntax: ATAN(Number)

• Number is the tangent of the angle you want.

• When used in a RENO flowchart, Number must evaluate to a numerical value. It can include:

Example:

• ATAN(1) = 0.785398 [the arctangent of 1 in radians, pi/4]

• ATAN(1)*180/PI() = 45 [the arctangent of 1 in degrees]