Nonnegative Solutions of Linear Algebraic Systems with Ratio Scale Coefficients
Thomas L. Saaty, Luís G. Vargas · ISAHP proceedings · 1994
Ratio srales are the life blood of the AHP.By definition ratio wales are nonnegative.Sometimes one is faced with solving a system of linear equations involving ratio scales and solving equations can give rise to negative numbers.This note provides a partial discussion of the relation between ratio scales, the solution of equations and the meaningfulness of negative numbers.i v