| Subject | English | German |
| tech. | amplitude of a complex number | Argument einer komplexen Zahl |
| tech. | argument of a complex number | Argument einer komplexen Zahl |
| comp., MS | complex number | komplexe Zahl (A number in the form a + bi, where a and b are real numbers and i = sqrt(-1) , so that bi is imaginary unless b = 0) |
| math. | complex number | komplexe Zahl |
| automat. | conjugate complex number | konjugierte komplexe Zahl |
| tech. | conjugate complex number | konjugiert komplexe Zahl |
| IT | conjugate complex numbers | konjugiert-komplexe Zahl |
| tech. | norm of a complex number | absoluter Betrag einer komplexen Zahl |