deletions | additions       diff --git a/Models.tex b/Models.tex  index 8e11718..7681c46 100644  --- a/Models.tex  +++ b/Models.tex 
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In this case $ω_b ∈ {\Bbb Z}^2$, $ω_0=x$, $|ω_b−ω_{b−1}| = 1$, where $b = 1, 2, . . . , n$, and $r_c+r_d \geq s$, and $0≤c  In other words, in this random walk, each step is made arbitrarily within a square lattice, except in the event that any two circles coincide. In context this implies that shots cannot overlap, and therefore "hot-spots" are not possible.