\input zb-basic
\input zb-matheduc
\iteman{ZMATH 2016f.01132}
\itemau{Shiu, Peter}
\itemti{Four functions and a bijection.}
\itemso{Math. Spectr. 48, No. 3, 116-118 (2016).}
\itemab
Summary: By applying the floor and ceiling operations to real numbers, a real function can be discretized to give a new function on the integers. Much information will, of course, be lost in such a process, but perhaps some intrinsic property concerning order may be retained. Even for the integers, inequalities can be tricky, and the article may serve as a useful exercise in their manipulation.
\itemrv{~}
\itemcc{I20 I30}
\itemut{integer functions; real bijection}
\itemli{}
\end