What 𝓬 means
In Word for Windows, enter 1D4EC and press Alt+X (checked 2026-09-28).
If the code follows other hexadecimal letters or digits, select only 1D4EC before pressing Alt+X.
What does 𝓬 mean in an equation?
It is a distinct variable; the formula defines what it represents.
Math uses letter styles to give symbols different identities. In a formula, the bold script c can stand for a different quantity from plain c; the surrounding equation or a note from its author tells you which quantity it is.
These styles existed in mathematical publishing before they were encoded as separate Unicode characters. Unicode’s mathematical alphabets let formulas carried as plain text preserve the distinction. The style is part of mathematical notation, not a universal code for one named quantity.
Don't confuse it with
1Questions people ask
2Can macOS’s Unicode Hex Input type 𝓬?
No. macOS’s Unicode Hex Input accepts at most four hexadecimal digits, so this five-digit character will not fit (checked 2026-09-28). Use Character Viewer and search by its name or code.
Why does 𝓬 look different across fonts?
Fonts draw mathematical script differently, so the stroke shapes and overall look can vary. MathJax documentation says the script and bold-script results depend on the font (checked 2026-09-28).
How to type 𝓬
𝓬\1D4ECCodes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.