Author: Glenda Jnku

Copy the pi symbol π or type it: Alt+227 on Windows, Option+P on Mac. Plus π symbol vs the number, capital Π the product operator, the pi vs tau debate, and how many digits you really need.

Copy the underscore _, or type it on Windows and Mac (Shift+hyphen). Plus underscores vs hyphens in URLs, snake_case, the typewriter origin, and its HTML and URL codes.

Copy the squared symbol ² or type it: Alt+0178 on Windows, 00B2 then Alt+X in Word. Plus the ² character vs superscript formatting, why m² and m2 differ to a computer, and how to square in code.

Copy the @ sign, or type it on Windows (Shift+2), Mac, iPhone and UK keyboards. Plus what @ is called around the world, its history, and its HTML and URL codes.

The yen sign, ¥, is a letter Y with two strokes through it, and it does something no other currency symbol does: it stands for two currencies at once, the Japanese yen and the Chinese yuan. It also has a strange habit of showing up where a backslash should be. If you just need the…

Copy the pipe | (vertical bar), or type it on Windows and Mac (Shift+backslash). Plus the command-line pipe, | vs ¦, code and regex uses, and its HTML and URL codes.

How to type a fraction symbol in Word: let 1/2 become ½ automatically, or use the equation editor for any fraction like 7/16. Plus why some fractions convert and others do not, and the Excel gotcha.