/Julia 0.6

# Punctuation

Extended documentation for mathematical symbols & functions is here.

symbol meaning
`@m` invoke macro `m`; followed by space-separated expressions
`!` prefix "not" operator
`a!( )` at the end of a function name, `!` indicates that a function modifies its argument(s)
`#` begin single line comment
`#=` begin multi-line comment (these are nestable)
`=#` end multi-line comment
`\$` string and expression interpolation
`%` remainder operator
`^` exponent operator
`&` bitwise and
`&&` short-circuiting boolean and
`|` bitwise or
`||` short-circuiting boolean or
`⊻` bitwise xor operator
`*` multiply, or matrix multiply
`()` the empty tuple
`~` bitwise not operator
`\` backslash operator
`'` complex transpose operator Aᴴ
`a[]` array indexing
`[,]` vertical concatenation
`[;]` also vertical concatenation
`[   ]` with space-separated expressions, horizontal concatenation
`T{ }` parametric type instantiation
`;` statement separator
`,` separate function arguments or tuple components
`?` 3-argument conditional operator (conditional ? if_true : if_false)
`""` delimit string literals
`''` delimit character literals
`` `` delimit external process (command) specifications
`...` splice arguments into a function call or declare a varargs function or type
`.` access named fields in objects/modules, also prefixes elementwise operator/function calls
`a:b` range a, a+1, a+2, ..., b
`a:s:b` range a, a+s, a+2s, ..., b
`:` index an entire dimension (1:end)
`::` type annotation, depending on context
`:( )` quoted expression
`:a` symbol a
`<:` `subtype operator`
`>:` `supertype operator` (reverse of subtype operator)
`===` `egal comparison operator`

© 2009–2016 Jeff Bezanson, Stefan Karpinski, Viral B. Shah, and other contributors