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Sigil (computer programming)
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===Identifier conventions=== In [[Fortran language features|Fortran]], sigils are not used, but all variables starting with the letters I, J, K, L, M and N are [[integers]] by default. Fortran documentation refers to this as "implicit typing". Explicit typing is also available to allow any variable to be declared with any type. Various programming languages including [[Prolog]], [[Haskell (programming language)|Haskell]], [[Ruby (programming language)|Ruby]] and [[Go (programming language)|Go]] treat [[identifier]]s beginning with a capital letter differently from identifiers beginning with a small letter, a practice related to the use of sigils.
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