This Posterous service looks like a great thing.

The picture attached is the ratio of the volume of a hyperball to its

circumscribing hypercube in N dimensions.

The mathematical relation is actually .

I need to review both the relation and the latex text as I am writing

from memory, but this should be good enough for a test post.

## Testing Posterous — and the ratio of the volumes of hyperballs and hypercubes in high dimensions

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