The rest of the numbers on the number line are irrational numbers. These, too, can be divided into different categories—most of which we can’t even imagine.

The fact that many effects are put into rational number teaching makes many students and teachers struggle to understand rational numbers (Cramer et al., 2002; Mazzocco and Devlin, 2008). The content ...

In this paper, we define a mathematical model of linear erasure block codes (k, C) for symbol erasure channels (SEC) that are built over either a field of rational numbers Q or an algebraic structure ...