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.

1676 equations across 1477 symbols.

kBTln⁡2=(1.380649×10−23 JK)(300 K)(0.6931)≈2.87×10−21 J≈2.9 zJk_B T \ln 2 = \left(1.380649\times10^{-23}\ \tfrac{\text{J}}{\text{K}}\right)(300\ \text{K})(0.6931) \approx 2.87\times10^{-21}\ \text{J} \approx 2.9\ \text{zJ}

1 published occurrence

View equation in context

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

r∝exp⁡ ⁣(−Ea(ΔEbind)kBT)r \propto \exp\!\left(-\frac{E_a(\Delta E_{\text{bind}})}{k_B T}\right)

1 published occurrence

View equation in context

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