These are decimal numbers, and dots above some of the digits make them recurring decimals. One dot means the digit under it repeats infinitely. In other words, it goes on forever (and ever and ever).

Linux provides commands for converting numbers from one base to another. Learn how to uses these commands and how to make the process easier with scripts and aliases. You might not be challenged very ...

While adding up your grocery bill in the supermarket, you’re probably not thinking how important or sophisticated our number system is. But the discovery of the present system, by unknown ...