When you type homework on your phone or message a teacher, ≠, √ or ² aren't always at hand. They're all here: operations, comparisons, logic, sets and calculus.
Alt codes for the most common ones
On Windows with a numeric keypad: Alt + 0178 types ², Alt + 0179 types ³, Alt + 0189 types ½ and Alt + 0177 types ±. For the rest, copy from here.
Frequently Asked Questions
How do I type squared on a phone?
Copy ² (or ³) from this page and paste it after the number: «5²».
Are ∑ and Σ the same?
They look alike but are different characters: ∑ (U+2211) is the summation sign and Σ (U+03A3) is the Greek letter sigma.
Other letter styles
♡ Heart symbols · ★ Star symbols · → Arrow symbols · ✓ Check mark and bullet symbols · Ω Greek letters · ʕ•ᴥ•ʔ Kaomoji to copy · ꧁꧂ Name Decorator · Gothic · Squared · Bubble · Letter Styles