Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On The Ten Point Wood-Desargues' Configuration   The ten pairs of directly similar triangles in perspective in the
Wood-Desargues' configuration have ten common Hagge circle centres. These
centres are known to lie one each of the ten perspectrices. It is shown in this
paper that these centres also lie at the vertices of five cyclic quadrangles,
which are similar to the five cyclic quadrangles of the initial Wood-Desargues'
configuration and that these five new cyclic quadrangles have a common
circumradius.

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The categories of this paper are: funct-an
3
The categories of this paper are: physics
18
The categories of this paper are: econ
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The categories of this paper are: atom-ph
11
The categories of this paper are: hep-lat
15
The categories of this paper are: nucl-ex
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The categories of this paper are: stat
1
The categories of this paper are: cs
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The categories of this paper are: mtrl-th
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The categories of this paper are: adap-org
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The categories of this paper are: alg-geom
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The categories of this paper are: hep-ex
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The categories of this paper are: quant-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: solv-int
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The categories of this paper are: eess