The Not Square Original Of Or Equal To symbol (⋣). Copy and paste it, or use its Unicode, HTML, and CSS codes.
More from Math.
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+22E3 (decimal 8931).
Use ⋣ in HTML to render ⋣ on a web page.
On Windows you can type it with Alt+8931 (hold Alt and enter the number on the numeric keypad).
Yes — copying is completely free and unlimited, and works right in your browser with no sign-up.