Revision #2290 → #2929 · back to history
addedA2 Weyl group is the symmetry group of the equilateral trianglea3a28d150f42
addedKilling form provides the inner product on roots299f0117b1ff
addedAngle between simple roots is at least 90 degreesae4926e6ef4f
addedNumber of roots in Aₙ is n²+n71e5832edcc2
addedE7 has 126 rootsddb002b8085c
addedE6 has 72 roots7d6231bff6f4
addedF4 has 48 roots30b5ffb8fcbe