Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Standardised co-ordinate geometry applied to affine rational
  trigonometry of a tetrahedron   The idea of standardised co-ordinates in three-dimensional affine space is
defined, by way of the Standard tetrahedron. By performing an affine map on a
general tetrahedron, we may replace the study of a general tetrahedron over a
specific metrical structure with the study of a specific tetrahedron over a
general metrical structure. Using the framework of Wildberger's rational
trigonometry as well as the definitions of generalised scalar and vector
products in the author's previous work, we will compute the various
trigonometric invariants associated to the Standard tetrahedron, with the
purpose of proving some more complicated results which are difficult to prove
without this mechanism.

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The categories of this paper are: econ
21
The categories of this paper are: adap-org
36
The categories of this paper are: cmp-lg
34
The categories of this paper are: chem-ph
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The categories of this paper are: supr-con
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The categories of this paper are: solv-int
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The categories of this paper are: plasm-ph
0
The categories of this paper are: hep-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: nlin
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The categories of this paper are: astro-ph
10
The categories of this paper are: q-bio
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The categories of this paper are: acc-phys
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The categories of this paper are: alg-geom
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The categories of this paper are: hep-lat
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The categories of this paper are: quant-ph