ℂ

Complex Numbers Symbol (ℂ)

Copy the Complex Numbers symbol ℂ to your clipboard, and see its Unicode code point, HTML entity, LaTeX command and how to type it on any device.

What does ℂ mean?

Double-struck C (ℂ) denotes the complex numbers a + bi. Its official Unicode name is DOUBLE-STRUCK CAPITAL C.

Copy & paste: press the Copy button above, then paste ℂ anywhere — Word, Google Docs, email, chat or code.
Windows (Word, WordPad, Outlook): type 2102 then press Alt+X. In any app, Win+. opens the symbol panel.
Mac (any symbol): switch to the Unicode Hex Input keyboard, hold Option and type 2102; or press Ctrl+Cmd+Space and search “double-struck capital c”.
Linux (GTK/IBus): press Ctrl+Shift+U, type 2102, then Space.
HTML: ℂ renders as ℂ.
LaTeX: \mathbb{C} in math mode (amssymb package for some symbols).

How do I type ℂ on Windows?

In Microsoft Word type 2102 and press Alt+X. In any app press Win+. to open the symbol panel, or copy ℂ from this page.

How do I type ℂ on a Mac?

Open the Character Viewer with Ctrl+Cmd+Space and search “double-struck capital c”, or switch to Unicode Hex Input and hold Option while typing 2102.

What is the HTML code for ℂ?

Use ℂ (hex) or ℂ (decimal).

What is the LaTeX command for ℂ?

Use \mathbb{C} in math mode.