Definitions
There is 1 meaning of the phrase
Principal Diagonal.
Principal Diagonal - as a noun
The diagonal of a square matrix running from the upper left entry to the lower right entry
Synonyms (Exact Relations)
main diagonalExample Sentences
"The principal diagonal of a square matrix consists of its elements from the top-left to the bottom-right."
"In a 3x3 matrix, the principal diagonal contains the elements a11, a22, and a33."
"The sum of the elements on the principal diagonal of a matrix is called the trace."
"The principal diagonal divides a square matrix into two triangular matrices."
"To find the principal diagonal of a matrix, you can simply read its elements row by row."
