The Greek Capital Letter Heta symbol (Ͱ). Copy and paste it, or use its Unicode, HTML, and CSS codes.
More from Greek Letters.
The quickest way is to copy Ͱ from this page and paste it anywhere. You can also insert it with its Unicode, HTML, or alt code listed above.
Ͱ is U+0370 (decimal 880).
Use Ͱ in HTML to render Ͱ on a web page.
On Windows you can type it with Alt+880 (hold Alt and enter the number on the numeric keypad).
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