triangle inequality


Definition of triangle inequality

: an inequality stating that the absolute value of a sum is less than or equal to the sum of the absolute values of the terms

First Known Use of triangle inequality

1941, in the meaning defined above

History and Etymology for triangle inequality

from its application to the distances between three points in a coordinate system

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The first known use of triangle inequality was in 1941

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Cite this Entry

“Triangle inequality.” Dictionary, Merriam-Webster, Accessed 21 Sep. 2020.

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