mathematics, the beta function, also called the Euler integral of the first kind, is a special function that is closely related to the gamma function and to binomial...
19 KB (4,093 words) - 08:27, 16 April 2025
for the beta prime distribution. The generalization to multiple variables is called a Dirichlet distribution. The probability density function (PDF) of...
245 KB (40,562 words) - 01:54, 20 June 2025
the Dirichlet beta function (also known as the Catalan beta function) is a special function, closely related to the Riemann zeta function. It is a particular...
8 KB (1,427 words) - 00:51, 24 May 2025
The beta function, also called the Euler beta function or the Euler integral of the first kind, is a special function in mathematics. Beta function may...
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theoretical physics, specifically quantum field theory, a beta function or Gell-Mann–Low function, β(g), encodes the dependence of a coupling parameter,...
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beta is not generally used as a symbol because it tends to be rendered identically to the uppercase Latin B. Dirichlet beta function The term "beta"...
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\operatorname {swish} _{\beta }(x)=x\operatorname {sigmoid} (\beta x)={\frac {x}{1+e^{-\beta x}}}.} where β {\displaystyle \beta } can be constant (usually...
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The beta function in accelerator physics is a function related to the transverse size of the particle beam at the location s along the nominal beam trajectory...
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\beta _{2}={\frac {(\alpha +\beta )^{2}(1+\alpha +\beta )}{n\alpha \beta (\alpha +\beta +2)(\alpha +\beta +3)(\alpha +\beta +n)}}\left[(\alpha +\beta )(\alpha...
15 KB (2,348 words) - 10:56, 15 June 2025
F(x;\alpha ,\beta )=I_{\frac {x}{1+x}}\left(\alpha ,\beta \right),} where I is the regularized incomplete beta function. While the related beta distribution...
12 KB (1,886 words) - 20:53, 23 March 2025
The β function lemma given below is an essential step of that proof. Gödel gave the β function its name in (Gödel 1934). The β {\displaystyle \beta } function...
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analogue. Digamma function, Polygamma function Incomplete beta function Incomplete gamma function K-function Multivariate gamma function: A generalization...
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j-invariant, a modular function, is a rational function in λ ( τ ) {\displaystyle \lambda (\tau )} . Incomplete beta functions Bx(p,q) are related by...
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integral of the second kind. (Euler's integral of the first kind is the beta function.) Using integration by parts, one sees that: Γ ( z + 1 ) = ∫ 0 ∞ t z...
90 KB (13,517 words) - 14:18, 9 June 2025
Binomial distribution (redirect from Binomial probability function)
to the cumulative distribution functions of the beta distribution and of the F-distribution: F ( k ; n , p ) = F beta-distribution ( x = 1 − p ; α = n...
53 KB (7,554 words) - 03:55, 26 May 2025
If the function is scaled with the parameter β {\displaystyle \beta } , then these expressions must be multiplied by β {\displaystyle \beta } . See multinomial...
33 KB (5,279 words) - 19:53, 29 May 2025
islets, beta cells play a vital role in maintaining blood glucose levels. Problems with beta cells can lead to disorders such as diabetes. The function of...
34 KB (3,924 words) - 16:24, 6 April 2025
Coupling constant (section Beta functions)
In this case, the non-zero beta function tells us that the classical scale-invariance is anomalous. If a beta function is positive, the corresponding...
21 KB (2,848 words) - 05:08, 7 May 2025
Pancreatic beta cell function (synonyms Gβ or, if calculated from fasting concentrations of insulin and glucose, HOMA-Beta or SPINA-GBeta) is one of the...
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Student's t-distribution (redirect from Student's t probability density function)
green. The cumulative distribution function (CDF) can be written in terms of I, the regularized incomplete beta function. For t > 0 , F ( t ) = ∫ − ∞ t ...
55 KB (6,423 words) - 06:46, 1 June 2025
In nuclear physics, beta decay (β-decay) is a type of radioactive decay in which an atomic nucleus emits a beta particle (fast energetic electron or positron)...
64 KB (7,712 words) - 13:14, 19 June 2025
in terms of the beta function,: f ( k | α , β , r ) = ( r + k − 1 k ) B ( α + r , β + k ) B ( α , β ) {\displaystyle f(k|\alpha ,\beta ,r)={\binom {r+k-1}{k}}{\frac...
10 KB (1,541 words) - 10:19, 10 June 2025
quark flavors. Asymptotic freedom can be derived by calculating the beta function describing the variation of the theory's coupling constant under the...
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^{k}\operatorname {B} (1-k/\beta ,1+k/\beta )\\[5pt]&=\alpha ^{k}\,{k\pi /\beta \over \sin(k\pi /\beta )}\end{aligned}}} where B is the beta function. Expressions for...
19 KB (2,053 words) - 09:15, 4 October 2024
{\textstyle \beta _{2}} yields an optimal value function β 2 ( β 1 ) = ( X 2 T X 2 ) − 1 X 2 T ( y − X 1 β 1 ) {\textstyle \beta _{2}(\beta _{1})=\left(\mathbf...
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Look up Beta, beta, béta, or bêta in Wiktionary, the free dictionary. Beta (B, β) is the second letter of the Greek alphabet. Beta or BETA may also refer...
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in quantum gauge theory, most notably, his 1972 calculation of the beta function to two-loop accuracy. His pioneering work in the days of FORTRAN and...
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following, three important theta function values are to be derived as examples: This is how the Euler beta function is defined in its reduced form: β...
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{\displaystyle p} , and q {\displaystyle q} positive. The function B(p,q) is the beta function. The parameter b {\displaystyle b} is the scale parameter...
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Gamma function B ( ) {\displaystyle B(\,)} is the Beta function I k ( ) {\displaystyle I_{k}(\,)} is the Regularized incomplete beta function Sometimes...
94 KB (10,898 words) - 11:05, 27 May 2025