About Platonic Realms

Originally with a URL of mathacademy.com, this website came online in 1997 as a project of graduate students at the University of Colorado, Boulder. Maintained and expanded by B. Sidney Smith, Platonic Realms grew into a destination for math students at the high school and undergraduate levels, offering an encyclopedia, articles, and special downloads. After languishing for many years the site is now being renewed and expanded using up-to-date technology to serve the interests of all who love mathematics.

We are always delighted to hear from our visitors, whether corrections, suggestions, or just a comment. The best way to contact us at Platonic Realms (and for the likeliest quickest response) is with the contact form. However, you are also welcome to write to us at 235 Dabney Lane, Pamplin, Virginia 23958, USA. You may leave voice-mail at 434-664-1352.

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Does your company market a
math-related product or service?

Platonic Realms is actively seeking new sponsors. We offer high-level, above-the-fold exposure to a select audience of math students and educators at below-market rates. Please get in touch using the contact page, or visit our advertiser's page to learn more about how we can help increase your sales.

Does your company market a
math-related product or service?

Platonic Realms is actively seeking new sponsors. We offer high-level, above-the-fold exposure to a select audience of math students and educators at below-market rates. Please get in touch using the contact page, or visit our advertiser's page to learn more about how we can help increase your sales.

detail from Escher pic Belvedere

Are you a mathematical artist?

Platonic Realms is preparing an online gallery space to showcase and market the works of painters, sculptors, and other artists working in a tangible medium.

If your work celebrates mathematical themes we want to hear from you!

Please let us know about yourself using the contact page.

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