Three spacings show length growing while reciprocal spacing shrinks. Exact arithmetic here means exact results for the stated model inputs; measured inputs still carry uncertainty and significant-figure limits.
highlighted = computed this step
One-meter spacing gives the largest reciprocal row
With 4 cells and spacing 1 m, the total length is 4 m and the toy reciprocal is 1 per m.
L=4⋅1=4m,b=1perm,sites=5
Two-meter spacing halves the reciprocal row
With 4 cells and spacing 2 m, the total length is 8 m and the toy reciprocal is one-half per m.
L=4⋅2=8m,b=1/2perm,sites=5
Four-meter spacing quarters the reciprocal row
With 4 cells and spacing 4 m, the total length is 16 m and the toy reciprocal is one-fourth per m.