# SP: Potential pool positioning
**URL:** https://discourse.numenta.org/t/sp-potential-pool-positioning/5361
**Category:** Engineering
**Tags:** nupic
**Created:** [February 4, 2019, 5:04am UTC](https://discourse.numenta.org/t/sp-potential-pool-positioning/5361 "2019-02-04T05:04:19Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@Jose\_Cueto](https://discourse.numenta.org/u/Jose_Cueto)
#### Post date: [February 4, 2019, 5:04am UTC](https://discourse.numenta.org/t/sp-potential-pool-positioning/5361/1 "2019-02-04T05:04:19Z")
Hey guys,
I have some questions regarding the positioning of potential pools in SP. In the article by Numenta
> **[The HTM Spatial Pooler—A Neocortical Algorithm for Online Sparse Distributed...](https://www.frontiersin.org/articles/10.3389/fncom.2017.00111/full)**
>
> Hierarchical temporal memory (HTM) provides a theoretical framework that models several key computational principles of the neocortex. In this paper, we analyze an important component of HTM, the HTM spatial pooler (SP). The SP models how neurons...
it stated the following,
> The synapses for the _i_ th SP mini-column are located in a hypercube of the input space centered at xcixic with an edge length of γ.
What (or how) is then the implementation of the positioning of the potential pool (onto an input space) of a column? Does it ensure some minimal rules to be met? How is the hypercube calculated, is there a relevant Neuroscience theory about this?
I’m trying to implement an SP could someone help me answer my questions please, cheers!
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### Author:  [@rhyolight](https://discourse.numenta.org/u/rhyolight)
#### Post date: [February 4, 2019, 4:48pm UTC](https://discourse.numenta.org/t/sp-potential-pool-positioning/5361/2 "2019-02-04T16:48:06Z")
A post was merged into an existing topic: [The HTM Spatial Pooler: a neocortical algorithm for online sparse distributed coding](https://discourse.numenta.org/t/the-htm-spatial-pooler-a-neocortical-algorithm-for-online-sparse-distributed-coding/1548)
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### Author:  [@rhyolight](https://discourse.numenta.org/u/rhyolight)
#### Post date: [February 4, 2019, 4:48pm UTC](https://discourse.numenta.org/t/sp-potential-pool-positioning/5361/3 "2019-02-04T16:48:07Z")