Gaussian window function E^(-x^2/(2 sigma^2)) on [-1/2 1/2] (default sigma 3/10)
GaussianWindow[x]
GaussianWindow[x, σ]
Plot[GaussianWindow[x], {x, -1, 1}, Exclusions -> None]
→ -Graphics-Plot3D[GaussianWindow[x]GaussianWindow[y], {x, -1, 1}, {y, -1, 1}, PlotRange -> All, Exclusions -> None]
→ -Graphics3D-GaussianWindow[0.1]
→ 0.9459594689067654