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Theta (UK: / ˈ θ iː t ə /, US: / ˈ θ eɪ t ə /) uppercase Θ or ϴ; lowercase θ [note 1] or ϑ; Ancient Greek: θῆτα thē̂ta [tʰɛ̂ːta]; Modern: θήτα thī́ta) is the eighth letter of the Greek alphabet, derived from the Phoenician letter Teth.
Greek alphabet letters and symbols. Greek letters pronunciation.
Theta (uppercase ϴ, lowercase θ) is the eighth letter of the Greek alphabet. In the Greek numeral system, it represents the number nine. Theta was also used as a symbol of death in Greek and Latin epigraphy. The Phoenician letter Teth (or ṭēt) gave rise to the Greek letter, and it meant wheel.
The Greek letter θ (theta) is used as a variable in mathematics to represent an angle. The symbol appears in the three main trigonometric functions: cosine, sine, and tangent as an input argument.
Theta (uppercase Θ / lowercase θ), is a letter in the Greek alphabet. It represents the "th" sound (as in "think") in Ancient and Modern Greek. In the system of Greek numerals, it has a value of 9. The Cyrillic letter Ѳ came from theta.
Lower-case theta (θῆτα), the 8th letter of the ancient Greek alphabet. It represented the voiceless aspirated dental or alveolar plosive /tʰ/ and later the voiceless dental fricative /θ/. It is preceded by η and followed by ι. A letter of the Comox alphabet, written in the Latin script.
What is the significance of the Greek letter Theta? Theta, symbolized as “Θ” in uppercase and “θ” in lowercase, holds various meanings across different contexts. It represents the number 9 in ancient Greek numerals, symbolizes angles in geometry and trigonometry, and signifies temperature in physics.
Theta (UK: / ˈθiːtə /, US: / ˈθeɪtə /) uppercase Θ or ϴ; lowercase θ or ϑ; Ancient Greek: θῆτα thē̂ta [tʰɛ̂ːta]; Modern: θήτα thī́ta [ˈθita]) is the eighth letter of the Greek alphabet, derived from the Phoenician letter Teth . In the system of Greek numerals, it has a value of 9.
The theta symbol (Θ θ) is the 8th letter of the Greek alphabet. Learn its meaning, see uppercase 'Θ' and lowercase 'θ' forms, and easily copy and paste the symbol for your use.
The Greek letters you are most likely to see for angles (in geometry and trigonometry) are α (alpha), β (beta), γ (gamma), δ (delta), and θ (theta). And of course you'll be using π (pi) all the time. Make sure you know how to spell and pronounce at least these six Greek characters. Math uses Greek letters, such as π.