A Story

Analyze \(z=e^{-1/x^2}\) (infinite derivatives, all 0 at 0)

Construct w=0+z function

Construct h=w*w(1-x)

Construct \(s=\int w\)

Construct n, normalized s

Construct \(f_\epsilon\), fast step function

Construct \(t_\epsilon\), roughly f*f(1-x)

Tell the story