Capital Lamda"},"2":{"wt":"1D6CC"},"name2":{"wt":"Mathematical Bold
Small Lamda"},"3":{"wt":"1D6EC"},"name3":{"wt":"Mathematical Italic
Capital Lamda"},"4":{"wt":"1D706"},"name4":{"wt":"Mathematical Italic
Small Lamda"},"5":{"wt":"1D726"},"name5":{"wt":"Mathematical Bold Italic
Capital Lamda"},"6":{"wt":"1D740"},"name6":{"wt":"Mathematical Bold Italic
Small Lamda"}},"i":0}}]}" id="mwASk">
Preview | 𝚲 | 𝛌 | 𝛬 | 𝜆 | 𝜦 | 𝝀 | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Unicode name | MATHEMATICAL BOLD CAPITAL LAMDA | MATHEMATICAL BOLD SMALL LAMDA | MATHEMATICAL ITALIC CAPITAL LAMDA | MATHEMATICAL ITALIC SMALL LAMDA | MATHEMATICAL BOLD ITALIC CAPITAL LAMDA | MATHEMATICAL BOLD ITALIC SMALL LAMDA | ||||||
Encodings | decimal | hex | dec | hex | dec | hex | dec | hex | dec | hex | dec | hex |
Unicode | 120498 | U+1D6B2 | 120524 | U+1D6CC | 120556 | U+1D6EC | 120582 | U+1D706 | 120614 | U+1D726 | 120640 | U+1D740 |
UTF-8 | 240 157 154 178 | F0 9D 9A B2 | 240 157 155 140 | F0 9D 9B 8C | 240 157 155 172 | F0 9D 9B AC | 240 157 156 134 | F0 9D 9C 86 | 240 157 156 166 | F0 9D 9C A6 | 240 157 157 128 | F0 9D 9D 80 |
UTF-16 | 55349 57010 | D835 DEB2 | 55349 57036 | D835 DECC | 55349 57068 | D835 DEEC | 55349 57094 | D835 DF06 | 55349 57126 | D835 DF26 | 55349 57152 | D835 DF40 |
Numeric character reference | 𝚲 | 𝚲 | 𝛌 | 𝛌 | 𝛬 | 𝛬 | 𝜆 | 𝜆 | 𝜦 | 𝜦 | 𝝀 | 𝝀 |
Preview | 𝝠 | 𝝺 | 𝞚 | 𝞴 | ||||
---|---|---|---|---|---|---|---|---|
Unicode name | MATHEMATICAL SANS-SERIF BOLD CAPITAL LAMDA | MATHEMATICAL SANS-SERIF BOLD SMALL LAMDA | MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL LAMDA | MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL LAMDA | ||||
Encodings | decimal | hex | dec | hex | dec | hex | dec | hex |
Unicode | 120672 | U+1D760 | 120698 | U+1D77A | 120730 | U+1D79A | 120756 | U+1D7B4 |
UTF-8 | 240 157 157 160 | F0 9D 9D A0 | 240 157 157 186 | F0 9D 9D BA | 240 157 158 154 | F0 9D 9E 9A | 240 157 158 180 | F0 9D 9E B4 |
UTF-16 | 55349 57184 | D835 DF60 | 55349 57210 | D835 DF7A | 55349 57242 | D835 DF9A | 55349 57268 | D835 DFB4 |
Numeric character reference | 𝝠 | 𝝠 | 𝝺 | 𝝺 | 𝞚 | 𝞚 | 𝞴 | 𝞴 |
These characters are used only as mathematical symbols. Stylized Greek text should be encoded using the normal Greek letters, with markup and formatting to indicate text style.
Epsilon is the fifth letter of the Greek alphabet, corresponding phonetically to a mid front unrounded vowel IPA: [e]. In the system of Greek numerals it also has the value five. It was derived from the Phoenician letter He . Letters that arose from epsilon include the Roman E, Ë and Ɛ, and Cyrillic Е, È, Ё, Є and Э.
Eta is the seventh letter of the Greek alphabet, representing the close front unrounded vowel IPA: [i]. Originally denoting the voiceless glottal fricative IPA: [h] in most dialects, its sound value in the classical Attic dialect of Ancient Greek was a long open-mid front unrounded vowel IPA: [ɛː], raised to IPA: [i] in hellenistic Greek, a process known as iotacism or itacism.
Gamma is the third letter of the Greek alphabet. In the system of Greek numerals it has a value of 3. In Ancient Greek, the letter gamma represented a voiced velar stop IPA: [ɡ]. In Modern Greek, this letter represents either a voiced velar fricative IPA: [ɣ] or a voiced palatal fricative IPA: [ʝ].
Iota is the ninth letter of the Greek alphabet. It was derived from the Phoenician letter Yodh. Letters that arose from this letter include the Latin I and J, the Cyrillic І, Yi, and Je, and iotated letters. In the system of Greek numerals, iota has a value of 10.
Omega is the 24th and last letter in the Greek alphabet. In the Greek numeric system/isopsephy (gematria), it has a value of 800. The word literally means "great O", as opposed to omicron, which means "little O".
Chi is the 22nd letter of the Greek alphabet.
Phi is the 21st letter of the Greek alphabet.
Tau is the 19th letter of the Greek alphabet. In the system of Greek numerals, it has a value of 300.
Pi is the sixteenth letter of the Greek alphabet, representing the sound. In the system of Greek numerals it has a value of 80. It was derived from the Phoenician letter Pe. Letters that arose from pi include Latin P, Cyrillic Pe, Coptic pi, and Gothic pairthra (𐍀).
Xi is the name of the 14th letter of the Greek alphabet. It is pronounced [ksi] in Modern Greek, and generally or in English. In the system of Greek numerals, it has a value of 60. Xi was derived from the Phoenician letter samekh .
Mu is the 12th letter of the Greek alphabet, representing the voiced bilabial nasal IPA: [m]. In the system of Greek numerals it has a value of 40. Mu was derived from the Egyptian hieroglyphic symbol for water, which had been simplified by the Phoenicians and named after their word for water, to become 𐤌 (mem). Letters that derive from mu include the Roman M and the Cyrillic М.
Theta 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.
Sigma is the eighteenth letter of the Greek alphabet. In the system of Greek numerals, it has a value of 200. In general mathematics, uppercase Σ is used as an operator for summation. When used at the end of a letter-case word, the final form (ς) is used. In Ὀδυσσεύς (Odysseus), for example, the two lowercase sigmas (σ) in the center of the name are distinct from the word-final sigma (ς) at the end. The Latin letter S derives from sigma while the Cyrillic letter Es derives from a lunate form of this letter.
Kappa is the 10th letter of the Greek alphabet, used to represent the voiceless velar plosive IPA: [k] sound in Ancient and Modern Greek. In the system of Greek numerals, Kʹ has a value of 20. It was derived from the Phoenician letter kaph . Letters that arose from kappa include the Roman K and Cyrillic К.
Rho is the 17th letter of the Greek alphabet. In the system of Greek numerals it has a value of 100. It is derived from Phoenician letter res . Its uppercase form uses the same glyph, Ρ, as the distinct Latin letter P; the two letters have different Unicode encodings.
Psi is the 23rd letter of the Greek alphabet and is associated with a numeric value of 700. In both Classical and Modern Greek, the letter indicates the combination.
The Greek alphabet has been used to write the Greek language since the late 9th or early 8th century BCE. It is derived from the earlier Phoenician alphabet, and was the earliest known alphabetic script to have distinct letters for vowels as well as consonants. In Archaic and early Classical times, the Greek alphabet existed in many local variants, but, by the end of the 4th century BCE, the Euclidean alphabet, with 24 letters, ordered from alpha to omega, had become standard and it is this version that is still used for Greek writing today.
Greek letters are used in mathematics, science, engineering, and other areas where mathematical notation is used as symbols for constants, special functions, and also conventionally for variables representing certain quantities. In these contexts, the capital letters and the small letters represent distinct and unrelated entities. Those Greek letters which have the same form as Latin letters are rarely used: capital A, B, E, Z, H, I, K, M, N, O, P, T, Y, X. Small ι, ο and υ are also rarely used, since they closely resemble the Latin letters i, o and u. Sometimes font variants of Greek letters are used as distinct symbols in mathematics, in particular for ε/ϵ and π/ϖ. The archaic letter digamma (Ϝ/ϝ/ϛ) is sometimes used.
In mathematics, a variable is a symbol and placeholder for (historically) a quantity that may change, or (nowadays) any mathematical object. In particular, a variable may represent a number, a vector, a matrix, a function, the argument of a function, a set, or an element of a set.
L, or l, is the twelfth letter of the modern English alphabet and the ISO basic Latin alphabet. Its name in English is el, plural els.