Four colour problem. Map of the United States of America (USA) being used to illustrate the four colour problem. This is a famous mathematical theorem that says that it is possible to colour different regions of a map (or any similar surface) using only four colours,while still ensuring that no adjacent regions are the same colour. This theorem was first proposed as a conjecture in 1862,and was proven with the aid of a computer in 2004 | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library |
Bildgröße: | 6000 px × 4000 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |