Symbol in context

$\Delta t$

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

Used in 5 equations

\Delta t = \Delta\tau/\sqrt f

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

N_\perp = \frac{2}{\pi\hbar}E_\infty\,\Delta t = \frac{2}{\pi\hbar}\left(\sqrt f\,E_0'\right)\frac{\Delta\tau}{\sqrt f} = \frac{2}{\pi\hbar}E_0'\,\Delta\tau.

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

\Delta t = 2\Omega A/c^2 \approx 2(7.292\times10^{-5})(2.5\times10^{11})/(8.988\times10^{16}) \approx 4.1\times10^{-10}\,\mathrm s

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

s = \Delta t/T \approx 4.1\times10^{-10}

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

\Delta x \, \Delta t \;\gtrsim\; C

This mathematical expression combines the displayed quantities; its precise role follows from the surrounding article text.