ギリシャの首都シータのシンボル ϴ

Unlike other signs this one combines the function of the letter and the symbol. 「Theta」 is the eighth letter of the Greek alphabet. It helps to indicate temperatures and to mark zenith angle. The sign is also used in electrical engineering, theory of strength of materials and other disciplines.

It is obvious that this sign is highly necessary, so it can be typed from a keyboard very easily. Its indication in Unicode is U+03F4. But you don't have to memorize it because it is already included in Arial and Times New Roman fonts.

シンボル「ギリシャの首都シータのシンボル」は「Greek and Coptic」ブロックの「バリアントの文字と記号」サブブロックに含まれており、2001年にUnicodeバージョン3.1の一部として承認されました。