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mathematics, an Fσ set (said F-sigma set) is a countable union of closed sets. The notation originated in French with F for fermé (French: closed) and...

In mathematical analysis and in probability theory, a σ-algebra ("sigma algebra"; also σ-field, where the σ comes from the German "Summe") on a set X...

Sigma male (or simply sigma) is a term in internet slang used most often to describe the archetype of a male who is a "lone wolf". While the name is a...

control and image capture from select Sigma cameras. Sigma makes autofocus lenses for the Sigma SA, Canon EF, Nikon F, Minolta/Sony α, Pentax K and Four...

f σ f + 1 − f σ m ) − 1 ≤ σ c ≤ f σ f + ( 1 − f ) σ m {\displaystyle \left({\frac {f}{\sigma _{f}}}+{\frac {1-f}{\sigma _{m}}}\right)^{-1}\leq \sigma...

distribution is f ( x ; σ ) = x σ 2 e − x 2 / ( 2 σ 2 ) , x ≥ 0 , {\displaystyle f(x;\sigma )={\frac {x}{\sigma ^{2}}}e^{-x^{2}/(2\sigma ^{2})},\quad x\geq...

_{33})^{2}+G(\sigma _{33}-\sigma _{11})^{2}+H(\sigma _{11}-\sigma _{22})^{2}+2L\sigma _{23}^{2}+2M\sigma _{31}^{2}+2N\sigma _{12}^{2}=1~.} Here F, G, H, L...

wealth G ( f ) = f μ − ( f σ ) 2 2 + ( 1 − f )   r . {\displaystyle G(f)=f\mu -{\frac {(f\sigma )^{2}}{2}}+(1-f)\ r.} Solving max ( G ( f ) ) {\displaystyle...

\sigma )=\sigma {\sqrt {-2\ln(1-F/100\%)}}} or, expressed in terms of the DRMS: Q ( F , σ d ) = σ d − 2 ln ⁡ ( 1 − F / 100 % ) 2 {\displaystyle Q(F,\sigma...

2 ) y ≥ 0 , {\displaystyle f_{Y}(y;\sigma )={\frac {\sqrt {2}}{\sigma {\sqrt {\pi }}}}\exp \left(-{\frac {y^{2}}{2\sigma ^{2}}}\right)\quad y\geq 0,}...

{\displaystyle {\vec {F}}^{\sigma }=-\psi ^{\sigma }({\vec {x}})\sum _{\sigma _{j}}H^{\sigma \sigma _{j}}({\vec {x}},{\vec {x}}')\sum _{i}\psi ^{\sigma _{j}}({\vec...

{\displaystyle f^{(-n)}(x)=\int _{a}^{x}\int _{a}^{\sigma _{1}}\cdots \int _{a}^{\sigma _{n-1}}f(\sigma _{n})\,\mathrm {d} \sigma _{n}\cdots \,\mathrm {d} \sigma _{2}\...

= F A = F A 0 A 0 A = F A 0 L L 0 = σ ( 1 + ε ) {\displaystyle \sigma _{\mathrm {t} }={\frac {F}{A}}={\frac {F}{A_{0}}}{\frac {A_{0}}{A}}={\frac {F}{A_{0}}}{\frac...

function is f ( x ) = 1 2 π σ 2 e − ( x − μ ) 2 2 σ 2 . {\displaystyle f(x)={\frac {1}{\sqrt {2\pi \sigma ^{2}}}}e^{-{\frac {(x-\mu )^{2}}{2\sigma ^{2}}}}\...

relation of the form lim σ → 0 + F ( σ + i ω ) = f ^ ( ω ) {\displaystyle \lim _{\sigma \to 0^{+}}F(\sigma +i\omega )={\hat {f}}(\omega )} holds under much...

L : E ( r C ) = r F + σ C E ( r P ) − r F σ P {\displaystyle \mathrm {CAL} :E(r_{C})=r_{F}+\sigma _{C}{\frac {E(r_{P})-r_{F}}{\sigma _{P}}}} In this formula...

(R_{a})]=R_{f}+[\operatorname {E} (R_{m})-R_{f}]*[\rho _{am}\sigma _{a}\sigma _{m}]/[\sigma _{m}\sigma _{m}]} i.e.: [ E ⁡ ( R a ) ] = R f + [ E ⁡ ( R m ) − R f ]...

{N}}_{d,D:d+D+2}^{\sigma }} such that sup x ∈ X ‖ f ^ ( x ) − f ( x ) ‖ < ε . {\displaystyle \sup _{x\in {\mathcal {X}}}\left\|{\hat {f}}(x)-f(x)\right\|<\varepsilon...

{1}{\mu _{0}}}\left(F_{\mu \nu ;\alpha }F^{\alpha \nu }-F_{\alpha \nu ;\mu }F^{\alpha \nu }+{\frac {1}{2}}F_{\sigma \alpha ;\mu }F^{\sigma \alpha }\right){\frac...

the matrix. σ c = V f σ f + V m σ m {\displaystyle \sigma _{c}=V_{f}\sigma _{f}+V_{m}\sigma _{m}} where σ {\displaystyle \sigma } is the stress, V is...