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Define ≈ operator for Intervals #150

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mzgubic opened this issue Nov 18, 2020 · 0 comments · May be fixed by #152
Open

Define ≈ operator for Intervals #150

mzgubic opened this issue Nov 18, 2020 · 0 comments · May be fixed by #152
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enhancement New feature or request good first issue Good for newcomers

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@mzgubic
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mzgubic commented Nov 18, 2020 

julia> i1 = Interval{Float64, Open, Closed}(1, 2)
Interval{Float64,Open,Closed}(1.0, 2.0)

julia> i2 = Interval{Float64, Open, Closed}(1, 2 + 1e-10)
Interval{Float64,Open,Closed}(1.0, 2.00001)

julia> i1 ≈ i2
ERROR: MethodError: no method matching isapprox(::Interval{Float64,Open,Closed}, ::Interval{Float64,Open,Closed})

How would this behaviour be defined?

  • The lower and upper bounds would have to be ≈ equal separately.

  • The closed/open distinction would be ignored.

  • If the underlying types don't have ≈ defined an error is thrown?
@mzgubic mzgubic added good first issue Good for newcomers enhancement New feature or request labels Nov 18, 2020
@gxyd gxyd linked a pull request Dec 1, 2020 that will close this issue
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[WIP] Define ≈ operator for Intervals gxyd/Intervals.jl
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