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许多年来，在我国高中的一册代数课本的封面上一直印有一个数字“三角形”，形如１１１１２１１３３１１４６４１１５１０１０５１１６１５２０１５６１这个数字三角形是二项展开式系数表，所以印在中学课本的封面上是为了纪念中国古代数学家最先构造出这一重要数学成果．...
For many years, a number of “triangles” have been printed on the cover of an algebra textbook in high school in our country. The figure triangle is 111121133114641151010511615201561. This figure triangle is a bipartite expansion coefficient table, so it is printed on the cover of the middle school textbook to commemorate ancient China. Mathematicians first constructed this important mathematical result. ...