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JuliaArrays / StaticArrays.jl Public

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Avoid underflow and overflow in norm()#975

Merged

hyrodium merged 21 commits intoJuliaArrays:masterJuliaArrays/StaticArrays.jl:masterfrom

wsshin:norm-nufwsshin/StaticArrays.jl:norm-nufCopy head branch name to clipboard

Feb 6, 2023

Conversation Commits21 (21)Checks Files changed

Merged

Avoid underflow and overflow in norm()#975
hyrodium merged 21 commits intoJuliaArrays:masterfrom
wsshin:norm-nuf

Commits

Commits on Dec 6, 2021

Avoid underflow in norm()
wsshin
committed
Perform return-type assertion at last step
wsshin
committed

Commits on Jan 3, 2022

Make _init_zero() take AbstractArray
wsshin
committed
Define maxabs_nested() to find maximum of absolute values of entries in nested array
wsshin
committed
Remove _norm() and define norm() directly for type stability
wsshin
committed
Use maxabs_nested() to define norm() stably without underflow
wsshin
committed
Call _init_zero() without qualification by StaticArrays
wsshin
committed
Merge branch 'master' into norm-nuf
wsshin
committed
Define norm_scaled() and call it inside norm()
wsshin
committed
norm(a,p) does not call norm_scaled(a,p) if p == 0, 2, Inf
wsshin
committed
Make code more succinct
wsshin
committed
Use normInf() instead of maxabs_nested()
wsshin
committed
Rename aₘ to scale
wsshin
committed
Calculate scale with mapreduce()
wsshin
committed

Commits on Jan 9, 2022

Re-introduce maxabs_nested to avoid type instability
wsshin
committed
norm() calls _norm() and _norm_scaled()
wsshin
committed
_norm_scaled(Size(a), a, p) does not need to deal with p==2
wsshin
committed
Add test for overflow
wsshin
committed
Add tests for underflow and overflow for p ≥ 2
wsshin
committed
Avoid using iszero(l) and isinf(l) for speedup
wsshin
committed
Avoid using iszero(scale) for speedup
wsshin
committed

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