Plot of the Gompertz function
t↦a⋅eb⋅ec⋅t{\displaystyle t\;\mapsto \;a\cdot \mathrm {e} ^{b\cdot \mathrm {e} ^{c\cdot t}}}with t is in the range t ∈ [−3,7],
a = 1, b = −1 and varying c.

Plotted with cubic Bézier Curves.
Own work
Georg-Johann