U+03B4 "δ" Greek Small Letter Delta Unicode Character

U+03B4 "δ" Greek Small Letter Delta is the fourth letter of the Greek alphabet, widely used in various scientific and mathematical contexts. In mathematics and physics, it commonly represents a change in a variable, such as in the notation for difference or increment, as well as the Dirac delta function in calculus. In chemistry, it denotes a partial charge in molecular structures, while in engineering and thermodynamics, it often symbolizes a small quantity or a specific property like boundary layer thickness. Its lowercase form is distinct from the uppercase Delta (Δ), which frequently signifies a larger change or the discriminant in algebra.

General Properties

Code Point	U+03B4
Version Added	1.1
Name	Greek Small Letter Delta
Block	Greek and Coptic
General Category	Lowercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right

Encodings

HTML Decimal Encoding	δ
HTML Hex Encoding	δ
UTF-8 Encoding	0xCE 0xB4
UTF-16 Encoding	0x03B4
UTF-32 Encoding	0x000003B4
C/C++/Java Escape	\u03b4

Unicode Properties

NFC Quick Check	Yes
NFD Quick Check	Yes
NFKC Quick Check	Yes
NFKD Quick Check	Yes
Numeric Type	None
Numeric Value	NaN
Line Break	Alphabetic
East Asian Width	Ambiguous
Lowercase	Yes
Simple Uppercase Code Point	"Δ" U+0394 Greek Capital Letter Delta
Simple Titlecase Code Point	"Δ" U+0394 Greek Capital Letter Delta
Uppercase Code Point	"Δ" U+0394 Greek Capital Letter Delta
Titlecase Code Point	"Δ" U+0394 Greek Capital Letter Delta
Cased	Yes
Changes When Casemapped	Yes
Changes When Titlecased	Yes
Changes When Uppercased	Yes
Script	Greek
Script Extensions	Greek
Indic Syllabic Category	Other
ID Start	Yes
XID Start	Yes
ID Continue	Yes
XID Continue	Yes
Alphabetic	Yes
Vertical Orientation	Rotated
Grapheme Base	Yes
Grapheme Cluster Break	Other
Word Break	Alphabetic letter
Sentence Break	Lower