Live mathematical reference

Mathematical compendium

A live index of the equations in published articles. Each entry leads to its article, equation guide, and the terms explained there. New or edited published articles appear automatically.

1680 equations across 1484 symbols.

shybrid(d)=α s^dense(d)+(1−α) s^sparse(d),α∈[0,1]s_{\mathrm{hybrid}}(d) = \alpha \, \hat{s}_{\mathrm{dense}}(d) + (1-\alpha)\, \hat{s}_{\mathrm{sparse}}(d), \qquad \alpha \in [0, 1]

1 published occurrence

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This equation states an equality: the expressions on both sides have the same value under the article’s assumptions.

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∀V. packing⁡(V)  ⟹  ∃c. ∀r. 1≤r  ⟹  card⁡ ⁣(V∩B(0,r))≤πr318+c r2\forall V.\ \operatorname{packing}(V) \implies \exists c.\ \forall r.\ 1 \le r \implies \operatorname{card}\!\left(V \cap B(0,r)\right) \le \frac{\pi r^{3}}{\sqrt{18}} + c\,r^{2}

1 published occurrence

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This equation states a bound: one expression must stay on the indicated side of the other under the article’s assumptions.

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lim⁡p0→0PR=∞,lim⁡p0→0FAR=1\lim_{p_0 \to 0} \mathrm{PR} = \infty, \qquad \lim_{p_0 \to 0} \mathrm{FAR} = 1

1 published occurrence

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This equation states an equality: the expressions on both sides have the same value under the article’s assumptions.

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EPE=σoverlay2+σCD2+σLER2\mathrm{EPE} = \sqrt{\sigma_{\mathrm{overlay}}^{2} + \sigma_{\mathrm{CD}}^{2} + \sigma_{\mathrm{LER}}^{2}}

1 published occurrence

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This equation states an equality: the expressions on both sides have the same value under the article’s assumptions.

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PR=p1p0,FAR=1−p0p1=1−1PR\mathrm{PR} = \frac{p_1}{p_0}, \qquad \mathrm{FAR} = 1 - \frac{p_0}{p_1} = 1 - \frac{1}{\mathrm{PR}}

1 published occurrence

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This equation states an equality: the expressions on both sides have the same value under the article’s assumptions.

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ϕ(r,t)=14πσ∑nIn(t)∥r−rn∥\phi(\mathbf{r},t) = \frac{1}{4\pi\sigma}\sum_{n}\frac{I_n(t)}{\lVert \mathbf{r}-\mathbf{r}_n \rVert}

1 published occurrence

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This equation states an equality: the expressions on both sides have the same value under the article’s assumptions.

All uses →Latest guide →Latest article →