Punctuation
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
Licensed under the MIT License.
https://docs.julialang.org/en/release-0.6/stdlib/punctuation/