Howtosignalprocessing
- What is the phase of a complex number?
- How do you find the phase of a complex number in polar form?
- How do you find the amplitude and phase of a complex number?
What is the phase of a complex number?
The angle or phase or argument of the complex number a + bj is the angle, measured in radians, from the point 1 + 0j to a + bj, with counterclockwise denoting positive angle. The angle of a complex number c = a + bj is denoted c: c = arctanb/a.
How do you find the phase of a complex number in polar form?
The polar form of a complex number z=a+bi is z=r(cosθ+isinθ) . So, first find the absolute value of r . Now find the argument θ . Since a>0 , use the formula θ=tan−1(ba) .
How do you find the amplitude and phase of a complex number?
To find the Amplitude or Argument of a complex number let us assume that, a complex number z = x + iy where x > 0 and y > 0 are real, i = √-1 and x2 + y2 ≠ 0; for which the equations x = |z| cos θ and y = |z| sin θ are simultaneously satisfied then, the value of θ is called the Argument (Agr) of z or Amplitude (Amp) of ...
