Symbol in context

$\phi_{,zz}$

This entry links every published equation using this exact notation. Its meaning may change between equations.

Used in 4 equations

y_2 - y_1 = \phi_{,zz}\,h^2 + O(h^4).

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

\phi_{,zz} \approx 3.08\times10^{-6}/c^2 \approx 3.43\times10^{-23}\,\mathrm{m^{-2}}

This equation gives an approximation: it relates the quantities while allowing an approximation.

\phi_{,zz}\,h^2 = \sqrt2\,\sigma_y

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

h = \sqrt{\frac{\sqrt2\,\sigma_y}{\phi_{,zz}}} = \sqrt{\frac{1.414\times10^{-18}}{3.43\times10^{-23}\,\mathrm{m^{-2}}}} \approx 203\,\mathrm m.

This equation gives an approximation: it relates the quantities while allowing an approximation.