Square root equation writer
Type what goes under the root. Copy a version that actually pastes with the bar intact.
“Copy with bar” pastes a real line over your expression in apps that support stacked Unicode marks (Docs, Word, Notes, most chat apps). If it looks off somewhere, use the plain version instead — it renders identically everywhere.
How it works
Type the expression
Enter whatever belongs under the root — a plain number, a single variable, or a short expression like 2x-1.
Check the live preview
The box above the buttons shows exactly how it will look, rendered with a real CSS radical and bar — not a font trick.
Pick a copy mode
“Copy with bar” pastes Unicode combining marks that draw a line over your text in most modern apps. “Copy plain” gives you √(…) instead, which is guaranteed to render identically everywhere, including plain-text-only fields.
Where does “copy with bar” work?
It uses the Unicode combining overline character (U+0305) stacked after each character of your expression, so the line is part of the text itself rather than an image or a font ligature. It renders correctly in:
- Google Docs, Slides, and Sheets
- Microsoft Word and Outlook
- iMessage, WhatsApp, Slack, and Discord
- Most modern browsers and note-taking apps
A handful of older or plain-text-only fields (some legacy form inputs, certain terminals) won't render the stacked marks cleanly — use “copy plain” for those instead.