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Complex Number Angle (phase) Calculator

To find the angle (argument or phase) of a complex number Z = a+bi (in rectangular or standard form), simply enter the real part and the imaginary part of Z in the provided text boxes. The computed angle φ is displayed instantly in both degrees and radians with the number of decimal places which can be specified using the provided slider.

Z = a + bi
a
b
Arg(Z)—Angle
φ = 0
Decimal places 4

Try our scientific Complex Number Calculator for full operations and polar-rectangular conversions."