半整數

${\displaystyle n+1/2}$,

4½, 7/2, −13/2, 8.5

${\displaystyle \mathbb {Z} +{1 \over 2}}$

参考文献

1. ^ John, Baez, On Quaternions and Octonions: Their Geometry, Arithmetic, and Symmetry by John H. Conway and Derek A. Smith, Bulletin of the American Mathematical Society, August 12, 2004, 42: 229–243, doi:10.1090/S0273-0979-05-01043-8 .
2. ^ Mészáros, Péter, The High Energy Universe: Ultra-High Energy Events in Astrophysics and Cosmology, Cambridge University Press: 13, 2010, ISBN 9781139490726.
3. ^ Fox, Mark, Quantum Optics:An Introduction, Oxford Master Series in Physics 6, Oxford University Press: 131, 2006, ISBN 9780191524257