principal diagonal

noun

: the diagonal in a square matrix that runs from upper left to lower right

Word History

First Known Use

1962, in the meaning defined above

Time Traveler
The first known use of principal diagonal was in 1962

Dictionary Entries Near principal diagonal

Cite this Entry

“Principal diagonal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/principal%20diagonal. Accessed 2 Dec. 2022.

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