@sepdek's

In order to be a measure (distance) d must: $latex \displaystyle d:X \times X \rightarrow R \; \text{(it should map to the set of real numbers)} &s=1$ $latex \displaystyle \exists d_0 \in R: -\infty \textless d_0 \leq d(x,y) \textless +\infty , \; \forall x,y \in X \; \text{(a minimum should exist)} &s=1$ $latex \displaystyle d(x,x)=d_0, […]

A newly developed remote monitoring app for Android devices has been published on the Google Play store. The application is a miniaturised version, which provides just a few remote measurements served by a data server. The application is heavily based upon the work of Maria Pappou and Christos Zaptses, which have originally developed an arduino-android […]