tridiagonal matrix

An $n\times n$ tridiagonal matrix is of the form

\begin{bmatrix}d_{1}&u_{1}&0&0&\cdots&0\\ l_{1}&d_{2}&u_{2}&0&\cdots&0\\ 0&l_{2}&d_{3}&u_{3}&\cdots&0\\ \vdots&\vdots&\ddots&\ddots&\ddots&\vdots\\ 0&0&\cdots&l_{n-2}&d_{n-1}&u_{n-1}\\ 0&0&\cdots&0&l_{n-1}&d_{n}\end{bmatrix}

Title	tridiagonal matrix
Canonical name	TridiagonalMatrix
Date of creation	2013-03-22 12:11:37
Last modified on	2013-03-22 12:11:37
Owner	akrowne (2)
Last modified by	akrowne (2)
Numerical id	5
Author	akrowne (2)
Entry type	Definition
Classification	msc 15-00
Classification	msc 65-00
Synonym	tridiagonal
Related topic	PentadiagonalMatrix