I was testing some code and noticed something that seemed odd to me when trying to use the range operator (“:”). julia> 1:5 1:5 but julia> 5:1 5:4 I don’t see anything in the help for : that suggests different behavior if a<b or a>b for a:b, although in the help for range I do see this statement…

Note the part about step defaulting to 1. help?> : search: : :: ?: >: <: (:)(start, [step], stop) Range operator. a:b constructs a range from a to b with a step size equal to 1, which produces: • a UnitRange when a and b are integers, or • a StepRange when a and b are characters…

Question about range operator (":")

General Usage

stevengj March 6, 2024, 5:27pm 5

See also related discussions:

'Negative' UnitRange in Julia?
The colon punctuation: Why doesn't 5:1 return [5, 4, 3, 2, 1]?
Why are empty ranges normalized?

2 Likes

Topic		Replies	Views
The colon punctuation: Why doesn't 5:1 return [5, 4, 3, 2, 1]? New to Julia question , range , unitrange	8	1219	December 16, 2023
'Negative' UnitRange in Julia? General Usage	6	1180	December 10, 2021
Reverse UnitRange General Usage	3	571	May 30, 2021
Colon / Ranges New to Julia	5	1857	December 10, 2020
Type restriction on UnitRange Internals & Design question	17	1500	October 21, 2017

Question about range operator (":")

Related topics