It is not an actual number. [link] shows both the number line and the interval notation. {: #CNX_IntAlg_Figure_02_05_001} We use the left parenthesis symbol, (, to show that the endpoint of the ...

Some interval notation graphs use the infinity symbol, which looks like a number "8" on its side. Find this under the "Insert" tab's "Symbol" button menu of choices.

One such breakthrough is the formulation of log-preinvex fuzzy-interval-valued functions, where integral inequalities such as Hermite–Hadamard and Hermite–Hadamard–Fejér types have been ...

and x≤2, we graph each inequality. We then look for where the graphs “overlap”. The numbers that are shaded on both graphs, will be shaded on the graph of the solution of the compound inequality. See ...