In the nineteenth century, the system of algebraic knowledge is enormous, which contains the permutation group, matrix, algebraic number theory, algebraic geometry and other branches.

十九世纪的代数学知识体系庞大，它包含置换群、矩阵、代数数论、代数几何等多个分支。

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One way to do that is with the classic comparison matrix, originated by the Boston Consulting Group, of four quadrants, charting values along the x- and y-axes.

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Like many leading figures in the world of management theory, Bruce Doolin Henderson, the founder of the Boston Consulting Group (and the man most responsible for the Boston matrix), was an engineer.

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The feeling that, if this group of 100 is the inner circle, imagine the kind of change this Power Matrix can affect.

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