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Small tweaks
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jd-foster committed Sep 20, 2024
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Showing 1 changed file with 6 additions and 5 deletions.
11 changes: 6 additions & 5 deletions docs/src/tutorials/getting_started/tolerances.jl
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# solution is in fact optimal. However, like all numerical algorithms that use
# floating point arithmetic, optimization solvers use tolerances to check
# whether a solution satisfies the constraints. In the best case, the solution
# satisfies the original constraints to machine precision. In most cases, the
# solution satisfies the constraints to some very small tolerance that has no
# satisfies the original constraints to
# [machine precision](https://en.wikipedia.org/wiki/Machine_epsilon). In most cases,
# the solution satisfies the constraints to some very small tolerance that has no
# noticeable impact on the quality of the optimal solution. In the worst case,
# the solver can return a "wrong" solution, or fail to find one even if it
# exists. (In the last case, the solution is wrong only in the sense of user
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# ### Why you shouldn't use a small tolerance

# Just like primal feasibility tolerances, using a smaller value for the
# integrality tolerance and lead to greatly increased solve times.
# integrality tolerance can lead to greatly increased solve times.

# ## Contradictory results

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# `(x, y) = (-1, 0)` and the second is feasible `(x, y) = (0, -1e-8)`. Different
# algorithms may terminate at either of these bases.

# Another example is a variation on our integrality eample, but this time, there
# is are constraint that `x >= 1` and `y <= 0.5`:
# Another example is a variation on our integrality example, but this time, there
# are constraints that `x >= 1` and `y <= 0.5`:

M = 1e6
model = Model(HiGHS.Optimizer)
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