Agriculture & Environmental
Storm Hydrograph
Q(t) = Qb + a·t·e^(-t/b)

A stream's response to a rain burst: discharge climbs steeply up the rising limb to a peak, then tails off along a slow recession as the catchment drains back to baseflow.
Computed & rendered in pure C# on the frozen OnlyCSharp 1.8 library — animation baked to GIF with the library's own
Gif encoder (no GPU, no ffmpeg, no external packages).