Komplexa tal
- [math]\displaystyle{ i^2 = -1 }[/math]
- [math]\displaystyle{ z = a + b i }[/math]
- [math]\displaystyle{ Re z = a }[/math]
- [math]\displaystyle{ Im z = b }[/math]
Konjugatet
- [math]\displaystyle{ z = a + b i }[/math]
Absolutbeloppet
- [math]\displaystyle{ z = a + b i }[/math]