Eli5 Why do we need complex numbers in real life?

Question

Eli5 Why do we need complex numbers in real life?

In: 11

Answer 1

In your day to day life, you probably are only using integers. Banking and paying bills buying groceries etc are simple tasks.

So from that standpoint you as an individual don’t need to use complex numbers.

However, you use products and devices that were built using more complex mathematics. Your phone. Your car, your laptop, tablet and many other devices use complex numbers.

Complex numbers frequently use electronics and circuits. So when you use these devices you are relying on complex numbers.