scalar matrix

1. 1.

   a diagonal matrix in which all of the diagonal elements are equal

   Broaderdiagonal matrix

   Narroweridentity matrix

Questions about scalar matrix

What does scalar matrix mean?

scalar matrix means "a diagonal matrix in which all of the diagonal elements are equal".

Is scalar matrix a common word?

scalar matrix is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.