U+1D7C7 "𝟇" Mathematical Sans-Serif Bold Italic Phi Symbol Unicode Character

Unicode Version 17.0

𝟇

U+1D7C7 "𝟇" Mathematical Sans-Serif Bold Italic Phi Symbol is a specialized typographic representation of the Greek letter phi, designed with a sans-serif typeface combined with a bold weight and italic slant. It belongs to the Mathematical Alphanumeric Symbols block, which was encoded to allow mathematicians, scientists, and technical writers to precisely represent distinct styles of letters in formulas and notation without relying on font-based formatting. This particular symbol is often used in fields like physics, engineering, and mathematics to denote variables such as the golden ratio, magnetic flux, or phase angles, where mixing different styles of the same letter helps clarify meaning in complex equations. The inclusion of this character in the Unicode standard ensures that it can be reliably displayed and exchanged across digital platforms and documents.

General Properties

Code Point U+1D7C7
Version Added 3.1
Name Mathematical Sans-Serif Bold Italic Phi Symbol
Block Mathematical Alphanumeric Symbols
General Category Lowercase Letter
Canonical Combining Class Not Reordered
Bidirectional Class Left To Right
Decomposition Type Font
Decomposition Mapping "ϕ" U+03D5 Greek Phi Symbol

Encodings

HTML Decimal Encoding 𝟇
HTML Hex Encoding 𝟇
UTF-8 Encoding 0xF0 0x9D 0x9F 0x87
UTF-16 Encoding 0xD835 0xDFC7
UTF-32 Encoding 0x0001D7C7
C/C++/Java Escape \ud835\udfc7

Unicode Properties

NFC Quick Check Yes
NFD Quick Check Yes
Numeric Type None
Numeric Value NaN
Line Break Alphabetic
Lowercase Yes
Cased Yes
Changes When NFKC Casefolded Yes
NFKC Casefold "φ" U+03C6 Greek Small Letter Phi
NFKC Simple Casefold "φ" U+03C6 Greek Small Letter Phi
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 Lower