Recently I have been reading books on DSP where I came across Polar co-ordinates. I understand that on Polar graph (4 quadrants) we have $0, \frac{\pi}{2}, \pi, \frac{3}{2\pi}$ and $2 \pi$ radians as we move from one quadrant to another. But further on they refer values in between $-\pi$ to $\pi$ values?
Which quadrant / range or rather what values represents $-\pi$ to $\pi$ - Like $-\pi < \omega < \pi$ ?
