triangle inequality 三角形公理；[数] 三角不等式例句1.To establish a triangle inequality with exponent parameter. 建立一个含指数参数的三角形不等式。2.You can say that the proof uses nothing beyond elementary matrix theory, repeated use of the triangle inequality, and the pigeonhole principle. 你可以简要地说其实证明就是初等矩阵理论，三角不等式和鸽笼原理的运用。