- Tau (Wikipedia)
Tau /ËtÉË, ËtaÊ/ (uppercase ΀, lowercase Ï, or Ï; Greek: ÏαÏ
[taf]) is the 19th letter of the Greek alphabet, representing the voiceless dental or alveolar plosive IPA: [t]. In the system of Greek numerals, it has a value of 300.
