main diagonal

listen to the pronunciation of main diagonal
الإنجليزية - الإنجليزية
The (imagined) diagonal line from the top left to the bottom right of a square matrix

In a diagonal matrix, non-zero elements appear only on the main diagonal.

the diagonal of a square matrix running from the upper left entry to the lower right entry
main diagonals
plural form of main diagonal
main diagonal
المفضلات