Absolute Value of a Complex
Number
Modulus of a Complex Number
The distance between a complex
number and the origin on
the complex plane.
The absolute value of a + bi is written a +
bi,
and the formula for a
+ bi is \(\sqrt {{a^2} + {b^2}}\). For a complex
number in polar form r(cos θ + isin θ)
the modulus is r.
See
also
Real
number, imaginary
number,
argument of a complex number
