Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On solids whose (entire) surface can be unfolded onto a plane   This is the English translation of Leonhard Euler's Latin paper "De solidis
quorum superficiem in planum explicare licet". Euler explains several methods
to obtain equations for developable surfaces. Therefore, this paper might be
interesting for anyone studying the history of Differential Geometry.

35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
36
The categories of this paper are: cmp-lg
31
The categories of this paper are: ao-sci
10
The categories of this paper are: q-bio
25
The categories of this paper are: patt-sol
4
The categories of this paper are: cond-mat
1
The categories of this paper are: cs
32
The categories of this paper are: atom-ph
27
The categories of this paper are: comp-gas
22
The categories of this paper are: chao-dyn
6
The categories of this paper are: astro-ph
20
The categories of this paper are: acc-phys
33
The categories of this paper are: plasm-ph
28
The categories of this paper are: alg-geom
5
The categories of this paper are: gr-qc