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[Perl6/en]Modify an error about the Range constructor (#3612)

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[Perl6/en] Modify an error about the Range constructor
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Amans Tofu
2019-08-30 17:22:27 +08:00
committed by Divay Prakash
parent 88223544ce
commit f0f161981f
1 changed files with 12 additions and 3 deletions
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@@ -499,10 +499,19 @@ say False ~~ True; #=> True
## Range constructor ## Range constructor
##------------------ ##------------------
3 .. 7; # 3 to 7, both included 3 .. 7; # 3 to 7, both included.
3 ..^ 7; # 3 to 7, exclude right endpoint. 3 ..^ 7; # 3 to 7, exclude right endpoint.
3 ^.. 7; # 3 to 7, exclude left endpoint. Same as `4..7`. 3 ^.. 7; # 3 to 7, exclude left endpoint.
3 ^..^ 7; # 3 to 7, exclude both endpoints. Same as `4..6`. 3 ^..^ 7; # 3 to 7, exclude both endpoints.
# 3 ^.. 7 almost like 4 .. 7 when we only consider integers.
# But when we consider decimals :
3.5 ~~ 4 .. 7; # False
3.5 ~~ 3 ^.. 7; # True, This Range also contains decimals greater than 3.
# We describe it like this in some math books: 3.5 ∈ (3,7]
# If you don’t want to understand the concept of interval
# for the time being. At least we should know：
3 ^.. 7 ~~ 4 .. 7; # False
## This also works as a shortcut for `0..^N`: ## This also works as a shortcut for `0..^N`:
^10; # means 0..^10 ^10; # means 0..^10