Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A tossed coin as quantum mechanical object   Comprehensive and physically consistent model of a tossed coin is presented
in terms of geometric algebra. The model clearly shows that there is nothing
elementary particle specific in the half-spin quantum mechanical formalism. It
also demonstrates what really is behind this formalism, feasibly reveals the
probabilistic meaning of wave function and shows that arithmetic of packed
objects, namely wave functions and Pauli matrices, reduces the amount of
available information.

5
The categories of this paper are: gr-qc
31
The categories of this paper are: ao-sci
27
The categories of this paper are: comp-gas
37
The categories of this paper are: supr-con
32
The categories of this paper are: atom-ph
15
The categories of this paper are: nucl-ex
17
The categories of this paper are: q-fin
1
The categories of this paper are: cs
7
The categories of this paper are: hep-th
6
The categories of this paper are: astro-ph
26
The categories of this paper are: bayes-an
8
The categories of this paper are: hep-ex
18
The categories of this paper are: econ
16
The categories of this paper are: stat
2
The categories of this paper are: math
14
The categories of this paper are: math-ph