bidiagonal
/baɪdaɪˈɡɒnəl/Definitions
1. adjective
relating to or having a matrix or array that has only two nonzero diagonals, especially one above the main diagonal and one below the main diagonal
“The researcher used a bidiagonal matrix to solve the complex mathematical equation.”
2. noun
a matrix or array that has only two nonzero diagonals, especially one above the main diagonal and one below the main diagonal
“The computer scientist worked with bidiagonal matrices to develop a new algorithm.”