Primitive Pythagorean Triples 1: Scatter Plot

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This Demonstration plots primitive Pythagorean triples (PPTs) to make lovely, interesting patterns in the -
plane. The details provide definitions to classify all triples
that are solutions of the Pythagorean formula
in integers. The 2D plot shows integer points
that satisfy this equation for some integer
.
Contributed by: Robert L. Brown (March 2011)
Open content licensed under CC BY-NC-SA
Snapshots
Details
Let be a Pythagorean triple (PT), that is,
,
, and
are positive integers such that
. A primitive Pythagorean triple (PPT) is a PT with
. Redundants are solutions that allow
,
, and
to be negative. This Demonstration illustrates all 16 solutions,
and
.
PPTs can be given unique base-3 ID numbers. See the Demonstration "Primitive Pythagorean Triples 3: Ordered Tree Graph" for the definitions.
Click "PPT 1" or "PPT 2" to see the subset of PPTs with base-3 ID numbers beginning with 1 or 2.
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