手写体大写 R ℛ

For describing electrical resistance, the universal gas constant, or other quantities from STEM subjects, the classical Latin R is more suitable. And if you want to decorate your text, you can use a calligraphic uppercase letter 「R」. It looks as if written by a quill pen, with elegant curls that are combined with thinner and substantial lines.

This Unicode symbol belongs to the category of 字母式符号  2100–214F . You can copy it and paste in a title, nickname, or your social media post. The text may look like this, for example: ℛ o a d .

符号 「手写体大写 R」 包含在 「字母式符号」 块的 「字母符號」 子块中，并在1993年作为Unicode版本1.1的一部分获得批准。