The Line Integration with Rectangular Path Around Pole 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+2A12 (decimal 10770).
Use ⨒ in HTML to render ⨒ on a web page.
On Windows you can type it with Alt+10770 (hold Alt and enter the number on the numeric keypad).
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