Complex Argument Calculator

Find the argument (angle) of a complex number in degrees and radians using atan2, with the correct quadrant.

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arg(z)

135 °

Find the argument (angle) of a complex number in degrees and radians using atan2, with the correct quadrant.

Also known as: arg of complex number, phase angle, angle of complex number.

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arg(z) = atan2(b, a), in (−180°, 180°]

Using the values pre-filled in the calculator above:

the calculator returns: