Theta symbol θ (Windows, Word, Mac, Alt code) Greek letter

theta symbol

Define Theta symbol?

This expression is defined as a name adapted by the Greeks to refer to the eighth letter corresponding to the Greek alphabet that is equivalent to the “th” in Latin and the T in some Greek voices in Spanish, the Greek numbering system is equivalent to the number 9, its pronunciation of Ancient Greek was that of an aspirated t and Modern Greek is a voiceless dental fricative similar to the Spanish z.

 Theta Symbol meaning

Unlike other icons, this one combines the functions of a letter and a symbol. Theta is the eighth letter from the Greek alphabet. It is used in the designation of temperatures, it can denote the zenith angle, and is also used in electro mechanics, strength materials and other disciplines. This number of use cases makes this character necessary, so it can be easily typed from the keyboard. Its designation in Unicode is U + 03F4, but it is not necessary to know it, since this letter is in the Arial and Times New Roman fonts.

Theta symbol on Windows

Yea though this Symbol does not have a devoted key on the computer keyboard, you can still type it on the computer keyboard with the Alt code technique.

  1. To do this, firstly open your Word document.
  2. Place the mouse click where you need to place the symbol.
  3. Then hold the Alt key and type 233 or 952 using the numeric keypad.
  4. Now release the alt code symbol appears automatically where you placed your cursor.
  5. This method works on Windows only. And your keyboard must also have a numeric keypad.

Θ=Alt +233, Greek capital letter theta.

θ=Alt +952, Greek small letter theta.

Theta symbol in Microsoft Word

03F4 Alt + X = Θ   

03B8 Alt + X = θ  

  1. Type the code “03F4” for Greek capital letter theta and “03B8” for Greek small letter theta instead of the character.
  2. Select it and in the top menu on the “Home” tab set the font “Symbol”.
  3. The letter will automatically turn into a symbol for theta.

Theta θ Symbol on Mac

There is no special key for inserting theta symbol on Mac. So follow the guide below to insert it.

  1. Press Command ⌘+Control ⌃+Space to bring up the Special Characters window.
  2. Type theta in the search bar.
  3. Your theta should be there.

Theta θ symbol Latex

To include the theta symbol in Latex you need to use the following syntax:

– \ Theta (for uppercase theta)

– \ theta (for lowercase theta)

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θ Uses for lower case

The symbol is used to denote temperature in physics, in particular the characteristic Debye temperature.

  • In electro mechanics, this letter denotes the load angle of a synchronous motor.
  • Plane angle in -metric
  • Unknown variable in goniometry
  • Special function of several complex variables
  • One of the Chebyshev task in prime numeral theory
  • Potential temperature in meteorology
  • Tester’s assessment in the theory of product response
  • Theta Type is a trial DNA type specific for circular chromos is.
  • Three times the value of an artificial neuron
  • Bayer’s designation letter applied to a star in a cone; usually this star is so marked, but not necessarily the brightest, as seen from Earth
  • A statistic often used when writing a likelihood function
  • Watterson’s estimate for population mutation rates in population genetics
  • Indicates the minimum optimal level of integration determined by the intersection of GG and LL plans (GG-LL plans are tools used to analyze the potential benefits of pegging a country to a foreign currency).
  • Bank reserve ratio in economic models
  • Ordinal folding function developed by Solomon Feferman
  • He side step function
  • In pharmacology, cheating a ligand bond to a macromolecule based on Hill’s equation.
  • In Scientology, the Greek word theta (and the letter Θ) is used as a symbol for thought as “energy.”

Θ Uses for Upper case

  • The size of the temperature according to the SI standard (in italics)
  • Dim lower temperature in the transport phenomenon
  • Asymptotically thin storms in algorithm analysis (big O notation)
  • A definite ordinal in set theory
  • Pentaquarks, exotic baryons in partial physiques
  • Brain signal frequency (beta, alpha, theta, theta) in the range from 4 to 8 Hz
  • One of the variables known as “Greeks” in finance, which is the time decay of options or the change in the intra-legal value of an option divided by the number of days until an option expires
  • Variable temperature difference for heat transfer
  • Measuring the angle of incidence of an X-ray beam during DRB


In classical Athens, it was used as an abbreviation for Greek ( khanates, “death”); and because it is similar to the human skull, theta was used as a warning symbol of death, just as skull and crossbars are used in modern times. He set on the potsherds used by the Athenians in voting for the death penalty. Petrus de Dacia, in a document dated 1291, correlates the idea that theta was used to label criminals as empty ciphers, and the rumbling was associated with the crossbar with a circle. the use of theta number was sometimes where the connotation felt unlu

Theta in ancient times

Theta was used as a symbol for life or reassure, while in the Greek letter alphabet, theta, was considered a symbol for death. According to Porphyry of Thailand, the Egyptians used the X within the circle as a symbol for the soul, meaning nine, it was used as a symbol for Ennid. Lai says that the Egyptians used the symbol for the Cosmos in the form of theta, with a bright circle representing the world and a snake representing the middle of Agathos Daimon (literally: a good spirit).The Egyptians also used the symbol of a point within a circle (a symbol of a point within a circle, sun disc ) to represent the sun, which may be the beginning of its use as an astrological glyph for the Sun. It is worth noting that (theta) has the same numerical value in isopsephy as Startλ startοü (Helios)


In its archaic form, start was written as a cross within a circle (as in Etruscan the symbol of a cross within a circle or another symbol of a cross within a circle), and later, as a line or point in a circle (Symbol of a line within a circle or Symbol of a point within a circle)… Archaic crossed theta forms are appear in the Linear A and Linear B wheel letters. The italic type was maintain by Unicode as U + 03D1 “GREEK THETA SYMBOL”(“= script theta”);, separate from U + 03B8 “GREEK SMALL LETTER THETA”. For the purposes of writing Greek text, both can be even variants of the same character, but in technical terms, and are used.

Latin language

The name ARAERGY ROVNA is in Gaulish tombstone. It is believed that the phonetic meaning of tau gallium was [t s].

C c

Early letter C c fita (,); evolved from start. This letter is in Russian alphabet until the reform of Russian spelling in 1918.

International Phonetic Alphabet

In International Phonetic Alphabet (IPA), [He does not represent a consonant in, which is a vocal dental fricative. The similar-looking character [], which is described as a lowercase forbidden o, indicates a close-to-middle center rounded vowel in the IPA.

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