• Unicode: 2207.
  • Alias: EscdelEsc.
  • Prefix operator.
  • f is by default interpreted as Del[f].
  • Used in vector analysis to denote gradient operator and its generalizations.
  • Used in numerical analysis to denote backward difference operator.
  • Also called nabla.
  • Not the same as \[EmptyDownTriangle].
New to Mathematica? Find your learning path »
Have a question? Ask support »