---
tag: 06J8TEPJPY
kind: concept
name: Real and imaginary parts
msc: [30A99]
sources:
  - url: https://en.wikipedia.org/wiki/Complex_number
    locator: Definition and basic operations
---

## Summary

The real part and the imaginary part of a complex number $z = a + b i$ are the real numbers $a$ and $b$.
They are the coordinates of $z$ in the [[complex plane|0CTE7A31XQ]].