二重イタリック体小J ⅉ

Letter 「j」 is present in all Latin alphabets. It represents a voiced palatal approximant sound, ] or ], depending on the phonetic system of a particular language. Historically, 「j」 was a variant of the letter 「i」 but it later became independent.

The lowercase j is used to denote one of the basic vectors, an imaginary quantity, jerk, a secondary index in programming and mathematics. These goals can be achieved with the help of symbol 𝑗 from the block with 数学用英数字記号  1D400–1D7FF .

The double-struck italic lowercase 「j」 comes in handy when you need to write words in English, French, German, and other languages. Use the double-struck letter to decorate your text.

シンボル「二重イタリック体小J」は「文字様記号」ブロックの「二重線の斜体数学記号」サブブロックに含まれており、2002年にUnicodeバージョン3.2の一部として承認されました。