U+1D75C "𝝜" Mathematical Sans-Serif Bold Capital Eta Unicode Character

U+1D75C "𝝜" Mathematical Sans-Serif Bold Capital Eta is a stylized variant of the Greek capital letter Eta, designed in a sans-serif bold typeface for use in mathematical and scientific notation. It belongs to the Mathematical Alphanumeric Symbols block, which provides distinct alphabetic forms to avoid confusion with ordinary text letters and to denote specific variables, constants, or operators in fields such as physics, engineering, and formal logic. This character allows authors and mathematicians to clearly represent the seventh letter of the Greek alphabet in a bold, sans-serif style when standard Greek typefaces are insufficient or when consistent formatting across equations is required.

General Properties

Code Point	U+1D75C
Version Added	3.1
Name	Mathematical Sans-Serif Bold Capital Eta
Block	Mathematical Alphanumeric Symbols
General Category	Uppercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right
Decomposition Type	Font
Decomposition Mapping	"Η" U+0397 Greek Capital Letter Eta

Encodings

HTML Decimal Encoding	𝝜
HTML Hex Encoding	𝝜
UTF-8 Encoding	0xF0 0x9D 0x9D 0x9C
UTF-16 Encoding	0xD835 0xDF5C
UTF-32 Encoding	0x0001D75C
C/C++/Java Escape	\ud835\udf5c

Unicode Properties

NFC Quick Check	Yes
NFD Quick Check	Yes
Numeric Type	None
Numeric Value	NaN
Line Break	Alphabetic
Uppercase	Yes
Cased	Yes
Changes When NFKC Casefolded	Yes
NFKC Casefold	"η" U+03B7 Greek Small Letter Eta
NFKC Simple Casefold	"η" U+03B7 Greek Small Letter Eta
Script	Common
Script Extensions	Common
Indic Syllabic Category	Other
ID Start	Yes
XID Start	Yes
ID Continue	Yes
XID Continue	Yes
Alphabetic	Yes
Math	Yes
Other Math	Yes
Vertical Orientation	Rotated
Grapheme Base	Yes
Grapheme Cluster Break	Other
Word Break	Alphabetic letter
Sentence Break	Upper