Eisenstein Triples

m

7

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1

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6

Two coprime numbers can generate integer-sided triangles containing an angle of 60° or 120°. The sides of these triangles are known as Eisenstein triples.

References

[1] Wikipedia. "Eisenstein Triple." (Jan 13, 2021) en.wikipedia.org/wiki/Eisenstein_triple.

External Links

Cone of Pythagorean Triplets

Euclid's Formula and Properties of Pythagorean Triples

Pythagorean Triples

The Law of Cosines

Permanent Citation

Ed Pegg Jr

"Eisenstein Triples"
http://demonstrations.wolfram.com/EisensteinTriples/
Wolfram Demonstrations Project
Published: January 19, 2021