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