Complex roots of a quadratic
- Author:
- James Ramsden
- Topic:
- Complex Numbers, Quadratic Equations, Root
Quadratic roots (complex)
The dashed red parabola is the reflection of the parabola in its turning point.
The intersection of this with the x-axis is marked on both the Cartesian and Argand diagram.
The complex roots correspond to the complex numbers at the top and bottom of a circle through these points on an Argand diagram.