# Hierarchical quadtree for fast mutipole method
**URL:** https://discourse.julialang.org/t/hierarchical-quadtree-for-fast-mutipole-method/46350
**Category:** Numerics
**Created:** [September 9, 2020, 10:18pm UTC](https://discourse.julialang.org/t/hierarchical-quadtree-for-fast-mutipole-method/46350 "2020-09-09T22:18:06Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@mleprovost](https://discourse.julialang.org/u/mleprovost)
#### Post date: [September 9, 2020, 10:18pm UTC](https://discourse.julialang.org/t/hierarchical-quadtree-for-fast-mutipole-method/46350/1 "2020-09-09T22:18:06Z")
Hello,
Is there a package that constructs a hierarchical quadtree given a set of non-uniform points in 2D? I would like to play around with fast multipole methods.
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### Author:  [@lmiq](https://discourse.julialang.org/u/lmiq)
#### Post date: [September 9, 2020, 11:42pm UTC](https://discourse.julialang.org/t/hierarchical-quadtree-for-fast-mutipole-method/46350/2 "2020-09-09T23:42:19Z")
This one?
[https://juliahub.com/ui/Packages/ClusterTrees/nbEOp/0.2.0](https://juliahub.com/ui/Packages/ClusterTrees/nbEOp/0.2.0)
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### Author:  [@tomerarnon](https://discourse.julialang.org/u/tomerarnon)
#### Post date: [September 10, 2020, 10:19am UTC](https://discourse.julialang.org/t/hierarchical-quadtree-for-fast-mutipole-method/46350/3 "2020-09-10T10:19:24Z")
Checkout [https://github.com/rdeits/RegionTrees.jl](https://github.com/rdeits/RegionTrees.jl) also.
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### Author:  [@mleprovost](https://discourse.julialang.org/u/mleprovost)
#### Post date: [September 11, 2020, 3:43pm UTC](https://discourse.julialang.org/t/hierarchical-quadtree-for-fast-mutipole-method/46350/4 "2020-09-11T15:43:41Z")
Thank you for your answers!