Abstract:The closed form inverse of a tridiagonal matrix, which is a slight generalization of a matrix considered by D. Kershaw (Math. Comp., v. 23, 1969, pp. 189–191), is given in this note. If the matrix has integer elements, an integer multiple of the inverse can be computed by integer arithmetic, that is, without machine roundoff error.
- © Copyright 1970 American Mathematical Society
- Journal: Math. Comp. 24 (1970), 665
- MSC: Primary 65.35
- DOI: https://doi.org/10.1090/S0025-5718-1970-0273798-2
- MathSciNet review: 0273798