U+1D7CE "𝟎" Mathematical Bold Digit Zero Unicode Character

Unicode Version 17.0

𝟎

U+1D7CE "𝟎" Mathematical Bold Digit Zero is a typographic variant of the standard digit zero, designed specifically for use in mathematical and scientific notation where a heavier, bolder weight is required to match surrounding bold variables or operators, such as in vectors or matrices. It belongs to the Mathematical Alphanumeric Symbols block, which was added to Unicode to provide distinct, unambiguous characters for mathematical typesetting, avoiding the ambiguity of simply using a bold style from a regular font. This character retains the same numerical value as the ordinary digit zero but is rendered in a boldface style, allowing it to be visually distinguished without losing its numeric meaning. Its inclusion in the Unicode standard ensures that mathematical documents can be accurately and consistently displayed across different platforms and software.

General Properties

Code Point U+1D7CE
Version Added 3.1
Name Mathematical Bold Digit Zero
Block Mathematical Alphanumeric Symbols
General Category Decimal Number
Canonical Combining Class Not Reordered
Bidirectional Class European Number
Decomposition Type Font
Decomposition Mapping "0" U+0030 Digit Zero

Encodings

HTML Decimal Encoding 𝟎
HTML Hex Encoding 𝟎
UTF-8 Encoding 0xF0 0x9D 0x9F 0x8E
UTF-16 Encoding 0xD835 0xDFCE
UTF-32 Encoding 0x0001D7CE
C/C++/Java Escape \ud835\udfce

Unicode Properties

NFC Quick Check Yes
NFD Quick Check Yes
Numeric Type Decimal
Numeric Value 0
Line Break Numeric
Changes When NFKC Casefolded Yes
NFKC Casefold "0" U+0030 Digit Zero
NFKC Simple Casefold "0" U+0030 Digit Zero
Script Common
Script Extensions Common
Indic Syllabic Category Other
ID Continue Yes
XID Continue Yes
Math Yes
Other Math Yes
Vertical Orientation Rotated
Grapheme Base Yes
Grapheme Cluster Break Other
Word Break Numeric
Sentence Break Numeric