A deterministic step ledger can define a training diffusion coefficient. Exact arithmetic here means exact results for the stated model inputs; measured inputs still carry uncertainty and significant-figure limits.
highlighted = computed this step
Step time closes the walk clock
Each step takes 2 seconds, so 4 steps take 8 seconds.
4⋅2=8
Step length and step time define training diffusion
The one-dimensional training diffusion coefficient is 1 square metre per second.