Source: Noto CJK

U+31F4 Katakana Letter Small Nu

U+31F4 was added in Unicode version 3.2 in 2002. It belongs to the block U+31F0 to U+31FF Katakana Phonetic Extensions in the U+0000 to U+FFFF Basic Multilingual Plane.

This character is a Other Letter and is mainly used in the Katakana script.

The glyph is not a composition. Its East Asian Width is wide. In bidirectional text it is written from left to right. When changing direction it is not mirrored. This katakana joins with other adjacent katakana to form a word. U+31F4 prohibits line breaks before its position. There are some exceptions, though.

The Wikipedia has the following information about this codepoint:

Nu, ぬ in hiragana, or ヌ in katakana, is one of the Japanese kana each representing one mora. Both hiragana and katakana are made in two strokes and represent [nɯ]. They are both derived from the Chinese character 奴. In the Ainu language, katakana ヌ can be written as small ㇴ to represent a final n, and is interchangeable with the standard katakana ン.

Representations

System	Representation (click value to copy)
Nº	12788
UTF-8	E3 87 B4
UTF-16	31 F4
UTF-32	00 00 31 F4
URL-Quoted	%E3%87%B4
HTML hex reference	ㇴ
Wrong windows-1252 Mojibake	ã‡´
Encoding: EUC_JIS_2004 (hex bytes)	A6 F2
Encoding: EUC_JISX0213 (hex bytes)	A6 F2
Encoding: GB18030 (hex bytes)	81 39 BC 38
Encoding: ISO2022_JP_2004 (hex bytes)	1B 24 28 51 26 72 1B 28 42
Encoding: ISO2022_JP_3 (hex bytes)	1B 24 28 4F 26 72 1B 28 42
Encoding: SHIFT_JIS_2004 (hex bytes)	83 F0
Encoding: SHIFT_JISX0213 (hex bytes)	83 F0
RFC 5137	\u'31F4'
Bash and Zsh inside `echo -e`	\u31F4
C and C++	\u31F4
C#	\u31F4
CSS	\0031F4
Excel	=UNICHAR(12788)
Go	\u31F4
JavaScript	\u31F4
Modern JavaScript since ES6	\u{31f4}
JSON	\u31F4
Java	\u31F4
Lua	\u{31F4}
Matlab	char(12788)
Perl	"\x{31F4}"
PHP	\u{31f4}
PostgreSQL	U&'\31F4'
PowerShell	`u{31F4}
Python	\u31F4
Ruby	\u{31f4}
Rust	\u{31f4}
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Elsewhere

Complete Record

Property	Value
Age (age)	3.2 (2002)
Unicode Name (na)	KATAKANA LETTER SMALL NU
Unicode 1 Name (na1)	—
Block (blk)	Katakana Phonetic Extensions
General Category (gc)	Other Letter
Script (sc)	Katakana
Bidirectional Category (bc)	Left To Right
Combining Class (ccc)	Not Reordered
Decomposition Type (dt)	none
Decomposition Mapping (dm)	Katakana Letter Small Nu
Lowercase (Lower)	✘
Simple Lowercase Mapping (slc)	Katakana Letter Small Nu
Lowercase Mapping (lc)	Katakana Letter Small Nu
Uppercase (Upper)	✘
Simple Uppercase Mapping (suc)	Katakana Letter Small Nu
Uppercase Mapping (uc)	Katakana Letter Small Nu
Simple Titlecase Mapping (stc)	Katakana Letter Small Nu
Titlecase Mapping (tc)	Katakana Letter Small Nu
Case Folding (cf)	Katakana Letter Small Nu
ASCII Hex Digit (AHex)	✘
Alphabetic (Alpha)	✔
Bidi Control (Bidi_C)	✘
Bidi Mirrored (Bidi_M)	✘
Composition Exclusion (CE)	✘
Case Ignorable (CI)	✘
Changes When Casefolded (CWCF)	✘
Changes When Casemapped (CWCM)	✘
Changes When NFKC Casefolded (CWKCF)	✘
Changes When Lowercased (CWL)	✘
Changes When Titlecased (CWT)	✘
Changes When Uppercased (CWU)	✘
Cased (Cased)	✘
Full Composition Exclusion (Comp_Ex)	✘
Default Ignorable Code Point (DI)	✘
Dash (Dash)	✘
Deprecated (Dep)	✘
Diacritic (Dia)	✘
Emoji Modifier Base (EBase)	✘
Emoji Component (EComp)	✘
Emoji Modifier (EMod)	✘
Emoji Presentation (EPres)	✘
Emoji (Emoji)	✘
Extender (Ext)	✘
Extended Pictographic (ExtPict)	✘
FC NFKC Closure (FC_NFKC)	Katakana Letter Small Nu
Grapheme Cluster Break (GCB)	Any
Grapheme Base (Gr_Base)	✔
Grapheme Extend (Gr_Ext)	✘
Grapheme Link (Gr_Link)	✘
Hex Digit (Hex)	✘
Hyphen (Hyphen)	✘
ID Continue (IDC)	✔
ID Start (IDS)	✔
IDS Binary Operator (IDSB)	✘
IDS Trinary Operator and (IDST)	✘
IDSU (IDSU)	0
ID_Compat_Math_Continue (ID_Compat_Math_Continue)	0
ID_Compat_Math_Start (ID_Compat_Math_Start)	0
Ideographic (Ideo)	✘
InCB (InCB)	None
Indic Mantra Category (InMC)	—
Indic Positional Category (InPC)	NA
Indic Syllabic Category (InSC)	Other
Jamo Short Name (JSN)	—
Join Control (Join_C)	✘
Logical Order Exception (LOE)	✘
Modifier Combining Mark (MCM)	✘
Math (Math)	✘
Noncharacter Code Point (NChar)	✘
NFC Quick Check (NFC_QC)	Yes
NFD Quick Check (NFD_QC)	Yes
NFKC Casefold (NFKC_CF)	Katakana Letter Small Nu
NFKC Quick Check (NFKC_QC)	Yes
NFKC_SCF (NFKC_SCF)	Katakana Letter Small Nu
NFKD Quick Check (NFKD_QC)	Yes
Other Alphabetic (OAlpha)	✘
Other Default Ignorable Code Point (ODI)	✘
Other Grapheme Extend (OGr_Ext)	✘
Other ID Continue (OIDC)	✘
Other ID Start (OIDS)	✘
Other Lowercase (OLower)	✘
Other Math (OMath)	✘
Other Uppercase (OUpper)	✘
Prepended Concatenation Mark (PCM)	✘
Pattern Syntax (Pat_Syn)	✘
Pattern White Space (Pat_WS)	✘
Quotation Mark (QMark)	✘
Regional Indicator (RI)	✘
Radical (Radical)	✘
Sentence Break (SB)	Other Letter
Soft Dotted (SD)	✘
Sentence Terminal (STerm)	✘
Terminal Punctuation (Term)	✘
Unified Ideograph (UIdeo)	✘
Variation Selector (VS)	✘
Word Break (WB)	Katakana
White Space (WSpace)	✘
XID Continue (XIDC)	✔
XID Start (XIDS)	✔
Expands On NFC (XO_NFC)	✘
Expands On NFD (XO_NFD)	✘
Expands On NFKC (XO_NFKC)	✘
Expands On NFKD (XO_NFKD)	✘
Bidi Paired Bracket (bpb)	Katakana Letter Small Nu
Bidi Paired Bracket Type (bpt)	None
East Asian Width (ea)	wide
Hangul Syllable Type (hst)	Not Applicable
ISO 10646 Comment (isc)	—
Joining Group (jg)	No_Joining_Group
Joining Type (jt)	Non Joining
Line Break (lb)	Conditional Japanese Starter
Numeric Type (nt)	none
Numeric Value (nv)	not a number
Simple Case Folding (scf)	Katakana Letter Small Nu
Script Extension (scx)
Vertical Orientation (vo)	Tu