U+03C4 "τ" Greek Small Letter Tau Unicode Character

Unicode Version 18.0

τ
Source: Noto Sans Source: Browser Default

U+03C4 "τ" Greek Small Letter Tau is the 19th letter of the Greek alphabet and has been used historically as a symbol in various academic and scientific fields. In mathematics and physics, it commonly represents the tau constant (equal to 2π), torque, shear stress, and the elementary particle known as the tau lepton. The letter’s character is visually similar to the Latin lowercase "t" but distinguished by its uncial form and origin from the Phoenician letter taw. Within the Unicode standard, it belongs to the Greek and Coptic block and is encoded in the range designed for classical and modern Greek script.

Encodings

HTML Decimal Encoding
τ
HTML Hex Encoding
τ
UTF-8 Encoding
0xCF 0x84
UTF-16 Encoding
0x03C4
UTF-32 Encoding
0x000003C4
C/C++/Java Escape
\u03c4