Tau

ΤTGreek letter Tauτ\tauGreek letter TGreek letter with that nametau (Τ)tavTaw
Tau (uppercase Τ, lowercase τ; ταυ ) is the 19th letter of the Greek alphabet.wikipedia
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Greek alphabet

GreekGreek lettersGreek letter
Tau (uppercase Τ, lowercase τ; ταυ ) is the 19th letter of the Greek alphabet.

T

Enclosed TSee below
Letters that arose from tau include Roman T and Cyrillic Te .
It is derived from the Semitic letter taw via the Greek letter tau.

Taw

Tavתت
Tau was derived from the Phoenician letter taw .
The Phoenician letter gave rise to the Greek tau, Latin T, and Cyrillic Т.

Te (Cyrillic)

ТТ тTe
Letters that arose from tau include Roman T and Cyrillic Te .
The Cyrillic letter Te was derived from the Greek letter Tau .

Tau protein

tauMAPTtau proteins
Tau proteins (or τ proteins, after the Greek letter with that name) are proteins that stabilize microtubules.

Greek numerals

Greek numeralGreeknumeric
In the system of Greek numerals it has a value of 300.
This eventually merged with the sigma-tau ligature stigma ϛ ( or ).

Kendall rank correlation coefficient

Kendall tau rank correlation coefficientKendall's tauKendall's τ
In statistics, the Kendall rank correlation coefficient, commonly referred to as Kendall's tau coefficient (after the Greek letter τ), is a statistic used to measure the ordinal association between two measured quantities.

Golden ratio

golden sectiongolden meanφ
It has also been represented by tau, the first letter of the ancient Greek τομή ('cut' or 'section').

Shear stress

shearshearingwall shear stress
A shear stress, often denoted by τ (Greek: tau), is the component of stress coplanar with a material cross section.

Phoenician alphabet

PhoenicianPhoenician scriptSemitic
Tau was derived from the Phoenician letter taw .

Relaxation (physics)

relaxation timerelaxationrelax
by a relaxation time τ.

Proper time

proper-time
By convention, proper time is usually represented by the Greek letter τ (tau) to distinguish it from coordinate time represented by t.

Torque

moment armmomentlever arm
The symbol for torque is typically, the lowercase Greek letter tau.

Turn (angle)

turnturnsrevolution
In 2010, Michael Hartl proposed to use tau to represent Palais' circle constant:

Cross

Greek crosscross symbolcross-crosslets fitchy
The Greek word is used in Early Christian descriptions of the execution cross, which indicate that its normal shape was similar to the Greek letter tau .

Tau Cross

Cross of Taucrux commissaAnthony's cross
It is so called because shaped like the Greek letter tau, which in its upper-case form has the same appearance as Latin and English letter T.

Theta

ΘGreek letter ThetaΘ
* In ancient times, Tau was used as a symbol for life or resurrection, whereas the eighth letter of the Greek alphabet, theta, was considered the symbol of death.

The Consonants at Law - Sigma vs. Tau, in the Court of the Seven Vowels

The content of the essay is a mock legal prosecution where the Greek letter Sigma petitions the court to sentence the Greek letter Tau to death by crucifixion:

Modern Greek

GreekModernModern Greek language
The name in English is pronounced or, but in modern Greek it is.

Greek orthography

GreekGreek punctuationAncient Greek orthography
This is because the pronunciation of the combination of Greek letters αυ has changed from ancient to modern times from one of to either or, depending on what follows (see Greek orthography).

Unicode

Unicode StandardUnicode Transformation FormatThe Unicode Standard
The letter occupies the Unicode slots U+03C4 (lowercase) and U+03A4 (uppercase).

HTML

Hypertext Markup LanguageHTML 3.2HTML 4
In HTML, they can be produced with named entities ( and ), decimal references ( and ), or hexadecimal references ( and ).

List of XML and HTML character entity references

character entity referenceHTML entitycharacter entity
In HTML, they can be produced with named entities ( and ), decimal references ( and ), or hexadecimal references ( and ).

Numeric character reference

Numeric Character References(numeric character references)decimal references
In HTML, they can be produced with named entities ( and ), decimal references ( and ), or hexadecimal references ( and ).

Per unit tax

specific taxspecific
* Specific tax amount