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Glyph for U+33DB
Source: Noto CJK

U+33DB Square Sr

U+33DB was added in Unicode version 1.1 in 1993. It belongs to the block U+3300 to U+33FF CJK Compatibility in the U+0000 to U+FFFF Basic Multilingual Plane.

This character is a Other Symbol and is commonly used, that is, in no specific script.

The glyph is a square composition of the glyphs Glyph for U+0073 Latin Small Letter S, Glyph for U+0072 Latin Small Letter R. Its East Asian Width is wide. In bidirectional text it is written from left to right. When changing direction it is not mirrored. U+33DB offers a line break opportunity at its position, except in some numeric contexts.

The Wikipedia has the following information about this codepoint:

The steradian (symbol: sr) or square radian is the unit of solid angle in the International System of Units (SI). It is used in three dimensional geometry, and is analogous to the radian, which quantifies planar angles. Whereas an angle in radians, projected onto a circle, gives a length of a circular arc on the circumference, a solid angle in steradians, projected onto a sphere, gives the area of a spherical cap on the surface. The name is derived from the Greek στερεός stereos 'solid' + radian.

The steradian is a dimensionless unit, the quotient of the area subtended and the square of its distance from the centre. Both the numerator and denominator of this ratio have dimension length squared (i.e. L2/L2 = 1, dimensionless). It is useful, however, to distinguish between dimensionless quantities of a different kind, such as the radian (a ratio of quantities of dimension length), so the symbol "sr" is used to indicate a solid angle. For example, radiant intensity can be measured in watts per steradian (W⋅sr−1). The steradian was formerly an SI supplementary unit, but this category was abolished in 1995 and the steradian is now considered an SI derived unit.

Representations

System Representation
13275
UTF-8 E3 8F 9B
UTF-16 33 DB
UTF-32 00 00 33 DB
URL-Quoted %E3%8F%9B
HTML hex reference ㏛
Wrong windows-1252 Mojibake ㏛
Encoding: EUC-KR (hex bytes) A7 E4
Adobe Glyph List srsquare

Elsewhere

Complete Record

Property Value
Age (age) 1.1 (1993)
Unicode Name (na) SQUARE SR
Unicode 1 Name (na1) SQUARED SR
Block (blk) CJK Compatibility
General Category (gc) Other Symbol
Script (sc) Common
Bidirectional Category (bc) Left To Right
Combining Class (ccc) Not Reordered
Decomposition Type (dt) square
Decomposition Mapping (dm) Glyph for U+0073 Latin Small Letter S Glyph for U+0072 Latin Small Letter R
Lowercase (Lower)
Simple Lowercase Mapping (slc) Glyph for U+33DB Square Sr
Lowercase Mapping (lc) Glyph for U+33DB Square Sr
Uppercase (Upper)
Simple Uppercase Mapping (suc) Glyph for U+33DB Square Sr
Uppercase Mapping (uc) Glyph for U+33DB Square Sr
Simple Titlecase Mapping (stc) Glyph for U+33DB Square Sr
Titlecase Mapping (tc) Glyph for U+33DB Square Sr
Case Folding (cf) Glyph for U+33DB Square Sr
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) Glyph for U+33DB Square Sr
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)
Math (Math)
Noncharacter Code Point (NChar)
NFC Quick Check (NFC_QC) Yes
NFD Quick Check (NFD_QC) Yes
NFKC Casefold (NFKC_CF) Glyph for U+0073 Latin Small Letter S Glyph for U+0072 Latin Small Letter R
NFKC Quick Check (NFKC_QC) No
NFKC_SCF (NFKC_SCF) Glyph for U+0073 Latin Small Letter S Glyph for U+0072 Latin Small Letter R
NFKD Quick Check (NFKD_QC) No
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
Soft Dotted (SD)
Sentence Terminal (STerm)
Terminal Punctuation (Term)
Unified Ideograph (UIdeo)
Variation Selector (VS)
Word Break (WB) Other
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) Glyph for U+33DB Square Sr
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) Ideographic
Numeric Type (nt) none
Numeric Value (nv) not a number
Simple Case Folding (scf) Glyph for U+33DB Square Sr
Script Extension (scx)
Vertical Orientation (vo) U