Shadow of a Tesseract

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I understand that the shadow of an object is one dimension less than the original object.

What what the shadow of a tesseract look like? Are there any real world examples?

Edit:

I found this, the Grande Arche in Paris which is a hypercube. Is this a true tesseract, and does it have a 3D shadow?

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1 Answer

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Undestanding "shadow" as projection, see at Wolfram:

and many other sites:

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