Symbols:Nabla/Backward Difference Operator

From ProofWiki
Jump to navigation Jump to search

Backward Difference Operator

$\nabla$


The backward difference operator on $f$ is defined as:

$\map {\nabla f} x := \map f x - \map f {x - 1}$


The $\LaTeX$ code for \(\map {\nabla f} x\) is \map {\nabla f} x .