difference operator

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difference operator

[′dif·rəns ‚äp·ə‚rād·ər]
(mathematics)
One of several operators, such as the displacement operator, forward difference operator, or central mean operator, which can be used to conveniently express formulas for interpolation or numerical calculation or integration of functions and can be manipulated as algebraic quantities.
References in periodicals archive ?
Boolean Calculus of Differences (Lecture Notes in Computer Science), Springer-Verlag, ISBN-10: 3540102868, Germany