If you buy something using links in our stories, we may earn a commission. This helps support our journalism. Learn more. Please also consider subscribing to WIRED The equal sign is the bedrock of ...

The hash symbol – also known as the pound/number sign, or even the octothorp(e) as Macworld reader Keith points out – was one of the more rarely used special characters until Twitter and Instagram ...

Rand Fishkin calls the "hash" or "pound symbol" a "powerful SEO tool" that many experts rarely use. Demonstrating ways to use it in his video series Whiteboard Friday, Fishkin says that "search ...

In some programming languages, the number sign (#), also called the "pound sign" and "hash sign," is used as a not-equals symbol. For example, the expression if amount # 500 means "if amount not equal ...

The equal sign is the bedrock of mathematics. It seems to make an entirely fundamental and uncontroversial statement: These things are exactly the same. But there is ...