ECE 210: Complex Numbers & Phasors

Interactive Visualization for Signal Processing

Click or Drag to move the complex number Z

Current State

Z = 1.00 + j1.00
Z = 1.41 ej(0.25π)
Rectangular: a = r cos(θ), b = r sin(θ)
Exponential: r = √a2 + b2, θ = tan-1(b/a)

Special Cases (Slide 5)

Euler's Identity

e = cos(θ) + j sin(θ)
≈ 1.41 [ 0.707 + j(0.707) ]