In particular, the first Vecten point K(π 4) also befriends itself. See Figure 6. The Fermat points K(±π 3) 7 are friends of the the Napoleon points K(π 6). 8 Seen collectively, the Kiepert hyperbola, the locus of Kiepert perspectors, befriends itself; so does its isogonal transform, the Brocard axis OK.