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Euler brick In mathematics, an Euler brick, named after Leonhard Euler, is a cuboid whose edges and face diagonals all have integer lengths. A primitive Euler brick is an Euler brick whose edge lengths are relatively prime. == Definition == The definition of an Euler brick in geometric terms is equivalent to a solution to the following system of Diophantine equations: : where ''a, b, c'' are the edges and ''d, e, f'' are the diagonals. Euler found at least two parametric solutions to the problem, but neither gives all solutions.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Euler brick」の詳細全文を読む
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