• Unicode: 2202.
  • Alias: EscpdEsc.
  • Prefix operator with builtin evaluation rules.
  • is by default interpreted as D[y,x].
  • is used in mathematics to indicate boundary.
  • EscdEsc gives \[Delta], not [PartialD].
  • You can use \[InvisibleComma] in the subscript to to give several variables without having them separated by visible commas.
Introduced in 1996
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