Octagon (Plane geometry)

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Found in articles

Pressdate=2010-07-28, Perfect octagon quadrangle systems 310 (13–14): 1979–1985, doi:10.1016/j.disc.2010.03.012 . Weisstein, Eric W. (编). Octagon. at MathWorld--A

线性组合

combination） a i ≥ 0 {\displaystyle a_{i}\geq 0} 凸锥象限或八分圆（英语：Octagon (Plane geometry)）凸组合 a i ≥ 0 {\displaystyle a_{i}\geq 0} and ∑ a i = 1 {\displaystyle

Found in articles

八边形

Pressdate=2010-07-28, Perfect octagon quadrangle systems 310 (13–14): 1979–1985, doi:10.1016/j.disc.2010.03.012 . Weisstein, Eric W. (编). Octagon. at MathWorld--A

线性组合

combination） a i ≥ 0 {\displaystyle a_{i}\geq 0} 凸锥象限或八分圆（英语：Octagon (Plane geometry)）凸组合 a i ≥ 0 {\displaystyle a_{i}\geq 0} and ∑ a i = 1 {\displaystyle