For discontinuous functions, operator {difference operator} can find finite difference between (n+1)th term and nth term: y(n + 1) - y(n). First-order difference operator symbol is uppercase Greek letter delta. Second-order difference operator symbol is uppercase Greek letter delta squared.
Mathematical Sciences>Calculus>Differentiation>Difference
3-Calculus-Differentiation-Difference
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Date Modified: 2022.0224