Comments (13)
We could even have e.g. RR(3)
for IntervalBox(-Inf..Inf, -Inf..Inf, -Inf..Inf)
from intervalarithmetic.jl.
I proposed that name inspired in the ieee standard. There, the entire
interval is defined as Interval(-Inf,Inf)
. I proposed that name since entire
is not clear enough. You are right that entireinterval
corresponds to the entire real line (as an interval!). Since Interval
refers to the one-dimensional case, whereas IntervalBox is for the multidimensional case, I think is ok. Do you have an alternative for the name of that function?
from intervalarithmetic.jl.
I agree that entire
is not clear enough.
Maybe entirerealline
(ugly) / wholerealline
/ allreals
(I think that is used in some package I have seen)
from intervalarithmetic.jl.
On the other hand, if it is not exported and is IntervalArithmetic.entire()
, then maybe it is clear enough, but not very nice to write.
For what it's worth, I like just writing -∞..∞
, although it does need quite a lot of typing. Writing -Inf..Inf
is actually shorter (in terms of number of keystrokes) than (almost) any option involving the word entire
with parentheses ;)
from intervalarithmetic.jl.
How about just reals()
?
from intervalarithmetic.jl.
From the suggestions, those names do not make clear that the result is an interval (which happens to be the whole real line). I agree with you that, from the point of view of the number of keystrokes, -Inf..Inf
seems the best option, though I think the standard requires a specific function for that.
from intervalarithmetic.jl.
I see your point. How about realline()
? That does sound like a set.
from intervalarithmetic.jl.
Here's an idea: R() or RR()
from intervalarithmetic.jl.
Note that Julia also has "blackboard bold" ("double-struck") letters, e.g. \BbbR<TAB>
gives ℝ
from intervalarithmetic.jl.
Yes, let's try it with RR()
!
from intervalarithmetic.jl.
Now \bbR
. But unfortunately
julia> ℝ = -∞..∞
[-∞, ∞]
julia> ℝ^3
[-∞, ∞]
(of course). Although, we do have
julia> ℝ × ℝ
[-∞, ∞] × [-∞, ∞]
from intervalarithmetic.jl.
And
julia> IntervalBox(ℝ, 4)
[-∞, ∞] × [-∞, ∞] × [-∞, ∞] × [-∞, ∞]
from intervalarithmetic.jl.
entireinterval
is fine enough, symbols will be exported in a separate module in 1.0-dev, see #270
from intervalarithmetic.jl.
Related Issues (20)
- Clarification on 'NG' Decoration HOT 2
- Warning seriously (using Logging.jl and with user settings)
- Don't display `NG` when `decorations = false` HOT 1
- ForwardDiff with min, max, and clamp HOT 3
- `string(x::Interval)` is not working correctly HOT 1
- Unclear error for malformed interval
- Can't multiply a `BareInterval` by a scalar HOT 5
- Document `in` behaviour HOT 2
- Define ` ∩` and `∪` for `BareInterval` HOT 6
- Define and export Heaviside function HOT 2
- No mechanism to define functions restricted to a domain HOT 2
- Piecewise functions HOT 5
- Add `\infty` symbol to Symbols module HOT 1
- `zero(emptyinterval())` should be empty HOT 1
- Expose domain of functions HOT 5
- `hull` with `NaI` gives non-NaI HOT 1
- Reinstate fast rounding with `prevfloat` and `nextfloat` HOT 2
- Give a hand to downstream packages to update to v0.22
- Define `x // 3` for an interval `x` HOT 2
- Document the decoration and flag system HOT 3
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from intervalarithmetic.jl.