The Radical Symbol Bottom symbol (⎷). Copy and paste it, or use its Unicode, HTML, and CSS codes.
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The quickest way is to copy ⎷ from this page and paste it anywhere. You can also insert it with its Unicode, HTML, or alt code listed above.
⎷ is U+23B7 (decimal 9143).
Use ⎷ in HTML to render ⎷ on a web page.
On Windows you can type it with Alt+9143 (hold Alt and enter the number on the numeric keypad).
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