Translations:Documentation/Calc Functions/ATAN/18/en

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    Formula Description Returns
    =ATAN(1) Inverse trigonometric tangent of 1 0.785398163397448 (PI/4 radians or π/4)
    =ATAN(0.5) Inverse trigonometric tangent of 0.5 0.463647609000806 (radians)
    =DEGREES(ATAN(1)) Inverse trigonometric tangent of 1. Further, converting angle in radians to degrees. 45° (degrees)
    =ATAN(-1)*180/PI() Inverse trigonometric tangent of -1. Further, converting angle in radians to degrees by multiplying by 180/PI(). -45° (degrees)