A difference equation, also called a finite difference equations, is an equation that involves finite differences of a function.
Difference equations are the finite analogs of differential equations.
A difference equation, also called a finite difference equations, is an equation that involves finite differences of a function.
Difference equations are the finite analogs of differential equations.
Weisstein, Eric W. "Difference Equation." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/DifferenceEquation.html