■基本単体の二面角(その102)

 E7~について

  (0,0,0,0,0,0,0)

  (1,0,0,0,0,0,0)

  (1,1/√3,0,0,0,0,0)

  (1,1/√3,1/√6,0,0,0,0)

  (1,1/√3,1/√6,1/√6,0,0,0)

  (1,1/√3,1/√6,1/√6,1/√3,0,0)

  (1,1/√3,1/√6,1/√6,1/√3,1,0)

  (1,1/√3,1/√6,0,0,0,1/2)

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 E8~について

  (0,0,0,0,0,0,0,0)

  (1,0,0,0,0,0,0,0)

  (1,1/√3,0,0,0,0,0,0)

  (1,1/√3,1/√6,0,0,0,0,0)

  (1,1/√3,1/√6,1/√10,0,0,0,0)

  (1,1/√3,1/√6,1/√10,1/√15,0,0,0)

  (1,1/√3,1/√6,1/√10,1/√15,1/√12,0,0)

  (1,1/√3,1/√6,1/√10,1/√15,1/√12,1/2,0)

  (1,1/√3,1/√6,1/√10,1/√15,0,0,1/3)

で,良さそうである.

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