Translingual word senses marked with topical category "Mathematics": list

Θ (Symbol) Θ, the ordinal number with the same cardinality as the smallest set larger than the real numbers; the smallest nonzero ordinal number such that there exists no surjection onto it from the real numbers.

Λ (Symbol) the von Mangoldt function

Λ (Symbol) the de Bruijn-Newman constant

Π (Symbol) Product over a set of like terms

Π (Symbol) A class (in some hierarchy of formulae, like the arithmetical hierarchy or polynomial hierarchy) of those formulae whose outermost quantifiers are universal quantifiers.

Σ (Symbol) Σ. Sum over a set of like terms

Σ (Symbol) suspension or reduced suspension

Σ (Symbol) A class (in the arithmetical hierarchy) of formulae whose outermost unbounded quantifiers are existential quantifiers

Φ (Symbol) an angle

Φ (Symbol) golden ratio conjugate ≈ 0.618...

Ω (Symbol) The symbol for ohm, the unit of electrical resistance in the International System of Units.

α (Symbol) Alexandroff compactification.

α (Symbol) independence number

β (Symbol) Stone–Čech compactification

γ (Symbol) the Euler-Mascheroni constant

δ (Symbol) A (path-dependent, inexact) differential.

δ (Symbol) A small number, usually accompanied by ε.

δ (Symbol) Kronecker delta or Dirac delta.

ε (Symbol) An arbitrarily small number, usually in the company of δ.

ζ (Symbol) A mathematical function formally known as the Riemann zeta function.

η (Symbol) The metric tensor in quantum field theory.

η (Symbol) Learning rate.

θ (Symbol) A plane angle.

ι (Symbol) sometimes used to write the imaginary unit

κ (Symbol) A cardinal number.

λ (Symbol) Lebesgue measure

μ (Symbol) population mean

μA (Symbol) Symbol for microampere, an SI unit of electrical current equal to 10⁻⁶ amperes.

μBTC (Symbol) microbitcoin

μBq (Symbol) Symbol for microbecquerel, an SI unit of radioactivity equal to 10⁻⁶ becquerels.

μC (Symbol) Symbol for microcoulomb, an SI unit of electric charge equal to 10⁻⁶ coulombs.

μF (Symbol) Symbol for microfarad, an SI unit of electrical capacitance equal to 10⁻⁶ farads.

μGy (Symbol) Symbol for microgray, an SI unit of absorbed dose equal to 10⁻⁶ grays.

μH (Symbol) Symbol for microhenry, an SI unit of electrical inductance equal to 10⁻⁶ henrys.

μHz (Symbol) Symbol for microhertz, an SI unit of frequency equal to 10⁻⁶ hertz.

μJ (Symbol) Symbol for microjoule, an SI unit of work or energy equal to 10⁻⁶ joules.

μK (Symbol) Symbol for microkelvin, an SI unit of thermodynamic temperature equal to 10⁻⁶ kelvins.

μL (Symbol) Symbol for microliter (microlitre), an SI unit of fluid measure equal to 10⁻⁶ liters (litres).

μN (Symbol) Symbol for micronewton, an SI unit of force equal to 10⁻⁶ newtons.

μPa (Symbol) Symbol for micropascal, an SI unit of pressure and stress equal to 10⁻⁶ pascals.

μR (Symbol) Symbol for microroentgen (microröntgen), an SI unit of radiation exposure equal to 10⁻⁶ roentgens (röntgens).

μS (Symbol) Symbol for microsiemens, an SI unit of electrical conductance equal to 10⁻⁶ siemens.

μSv (Symbol) Symbol for microsievert, an SI unit of radiation dose equal to 10⁻⁶ sieverts.

μT (Symbol) Symbol for microtesla, an SI unit of magnetic flux density equal to 10⁻⁶ teslas.

μV (Symbol) Symbol for microvolt, an SI unit of electromotive force equal to 10⁻⁶ volts.

μW (Symbol) Symbol for microwatt, an SI unit of power equal to 10⁻⁶ watts.

μWb (Symbol) Symbol for microweber, an SI unit of magnetic flux equal to 10⁻⁶ webers.

μcd (Symbol) Symbol for microcandela, an SI unit of luminous intensity equal to 10⁻⁶ candelas.

μg (Symbol) Symbol for microgram, an SI unit of mass equal to 10⁻⁶ grams.

μkat (Symbol) Symbol for microkatal, an SI unit of catalytic activity equal to 10⁻⁶ katals.

μl (Symbol) Symbol for microliter (microlitre), an SI unit of fluid measure equal to 10⁻⁶ liters (litres).

μlm (Symbol) Symbol for microlumen, an SI unit of luminous flux equal to 10⁻⁶ lumens.

μlx (Symbol) Symbol for microlux, an SI unit of illumination equal to 10⁻⁶ lux.

μm (Symbol) Symbol for micrometer (micrometre), an SI unit of length equal to 10⁻⁶ meters (metres).

μmol (Symbol) Symbol for micromole, an SI unit of amount of substance equal to 10⁻⁶ moles.

μs (Symbol) Symbol for microsecond, an SI unit of time equal to 10⁻⁶ seconds.

μΩ (Symbol) Symbol for microohm, an SI unit of electrical resistance equal to 10⁻⁶ ohms.

ξ (Symbol) Gnarl

π (Symbol) Pi, an irrational constant representing the ratio of the circumference of a circle to its diameter; approximately 3.14159265.

π (Symbol) homotopy group

π (Symbol) prime-counting function

ρ (Symbol) Dickman function

ρ (Symbol) 3π

σ (Symbol) Standard deviation.

σ (Symbol) Sum of divisors.

σ (Symbol) Braid group algebra.

τ (Symbol) An irrational constant defined as the ratio of the circumference of a circle to its radius, equal to the radian measure of a full turn; approximately 6.283185307 (equal to 2π, or twice the value of π).

φ (Symbol) The golden ratio, an irrational number with a value of approximately 1.618033988 which expresses the relationship that the sum of two quantities is to the larger quantity as the larger is to the smaller.

φ (Symbol) Euler's totient function, an arithmetic function that counts totatives

χ (Symbol) characteristic function (any meaning) or characteristic polynomial

ω (Symbol) The first (countably) infinite ordinal number, its corresponding cardinal number ℵ₀ or the set of natural numbers (the latter of which are often defined to equal the former).

ω₁ (Symbol) the first uncountable ordinal

ϖ (Symbol) The lemniscate constant, a transcendental constant representing the ratio of the perimeter of Bernoulli's lemniscate to its diameter; approximately 2.62205755.

ϖ (Symbol) diameter of a model κ-plane

ϖ (Symbol) uniformizer of a localisation of a number ring at a regular prime ideal

϶ (Symbol) "such that"

א (Symbol) ℵ (a transfinite cardinal number)

よ (Symbol) Yoneda embedding

฿ (Symbol) An unofficial currency sign representing bitcoin, primarily used before its symbol (₿) was added to Unicode.

! … :≠ (16 senses)

= … `vert` `vert` (16 senses)

Download postprocessed JSONL data for these senses (1.9MB)

This page is a part of the kaikki.org machine-readable Translingual dictionary. This dictionary is based on structured data extracted on 2025-01-15 from the enwiktionary dump dated 2025-01-01 using wiktextract (b941637 and 4230888). The data shown on this site has been post-processed and various details (e.g., extra categories) removed, some information disambiguated, and additional data merged from other sources. See the raw data download page for the unprocessed wiktextract data.

If you use this data in academic research, please cite Tatu Ylonen: Wiktextract: Wiktionary as Machine-Readable Structured Data, Proceedings of the 13th Conference on Language Resources and Evaluation (LREC), pp. 1317-1325, Marseille, 20-25 June 2022. Linking to the relevant page(s) under https://kaikki.org would also be greatly appreciated.