f (ϵ, δ s) \approx \frac{1}{ξ \sqrt{\frac{2 π}{κ} (1 - β^{2} ∕ 2)}} exp [\frac{{(ϵ - \hat{ϵ})}^{2}}{2} \frac{κ}{ξ^{2} (1 - β^{2} ∕ 2)}]

Figure 1:

Mathml rendering

Figure 2:

Rendering of the same expression via graphics image