/lit/ - Literature

>>14217783
Probably bait, but this is /lit, so its impossible to tell. The signals that are being sent back and forth from your computer and router were designed using analysis in the time and frequency domains. When designing a signaling system, it is far easier to perform calculations in the frequency domain.

https://en.wikipedia.org/wiki/Fourier_transform
https://en.wikipedia.org/wiki/Laplace_transform

These two transformations transform functions of time to functions in the frequency domain, which generally involves complex (both real and imaginary) numbers.

This allows us to see certain characteristics of our signalling system that would otherwise be strenuously difficult to determine in the time domain.