As a student of pure math, I am often asked the question of how to visualize high dimensional objects. This question isn’t as important to pure mathematicians as it is to statisticians, so I write about it here.

…I’ve never had to visualize anything high-dimensional in my pure math classes. Working things out algebraically is much nicer, and using a lower-dimensional object as an example or source of intuition usually works out — at least at the undergrad level.

But that’s not a really satisfying answer, for two reasons. One is that it *is* possible to visualize high-dimensional objects, and people have developed many ways of doing so. Dimension Math has on its website a neat series of videos for visualizing high-dimensional geometric objects using stereographic projection. The other reason is that while pure mathematicians do not have a need for visualizing high-dimensions, statisticians do. Methods of visualizing high dimensional data can give useful insights when analyzing data….

More at http://www.lisazhang.ca/2011/12/visualizing-4-dimensions.html

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*Posted by lisaczhang on December 6, 2011*

https://uwdatasci.wordpress.com/2011/12/06/visualizing-4-dimensions/