Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the Curved Patterns Seen in the Graph of PPTs   Dr. Ron Knott constructed a graph of all Primitive Pythagorean Triples (PPTs)
with legs up to length 10,000, using Mathematica. The patterns are very
interesting, suggesting conic sections. We show that they indeed are parabolic
curves which follow in a natural way from the mathematics of the subject
matter.

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The categories of this paper are: hep-ph
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The categories of this paper are: econ
28
The categories of this paper are: alg-geom
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The categories of this paper are: eess
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The categories of this paper are: hep-ex
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The categories of this paper are: acc-phys
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The categories of this paper are: math-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: bayes-an
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The categories of this paper are: chem-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: nucl-ex
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The categories of this paper are: patt-sol
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The categories of this paper are: astro-ph
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The categories of this paper are: q-fin
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The categories of this paper are: nucl-th