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allow skipping derivative computations #180

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allow skipping derivative computations #180

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f213eef
allow skipping derivative computations
aplavin May 29, 2024
fa733c5
docs & test
aplavin May 29, 2024
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8 changes: 5 additions & 3 deletions src/branchandbound.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -13,9 +13,11 @@ end
function _branch_bound(bab::BranchAndBoundEnclosure, f::Function, X::Interval_or_IntervalBox, df;
initial=emptyinterval(first(X)),
cnt=1)
dfX = df(X)
range_extrema, flag = _monotonicity_check(f, X, dfX)
flag && return hull(range_extrema, initial)
if !isnothing(df)
dfX = df(X)
range_extrema, flag = _monotonicity_check(f, X, dfX)
flag && return hull(range_extrema, initial)
end

fX = f(X) # TODO: allow user to choose how to evaluate this (mean value, natural enclosure)
# if tolerance or maximum number of iteration is met, return current enclosure
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