principal diagonal

/ˌprɪnsəpəl daɪˌægənl/
IPA guide

Definitions of principal diagonal
  1. noun
    the diagonal of a square matrix running from the upper left entry to the lower right entry
    synonyms: main diagonal
    see moresee less
    type of:
    diagonal
    an oblique line of squares of the same color on a checkerboard
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