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Finite differences (Ubff)

Definition
The differences between a function's values at two discrete points, from which the derivative of the function may be approximated. (Source: Team)
Broader Term
Approximation (Mathematics) (Ubf)
Related Terms (Hierarchical)
Asymptotic expansion (Ubfb)
Curve fitting (Ubfc)
Interpolation (Ubfj)
Iterative methods (Ubfk)
Least squares method (Ubfm)
Numerical integration (Ubfp)
Splines (Ubfs)