## 7.6

Simulate SAWs in three dimensions. Determine the vairation of $\langle r^2\rangle$ with step number and find the value of $\nu$, where this parameter is defined through the relation (7.9). Compare your results with those in Figure 7.6. You should find that $\nu$ decreases for successively higher dimensions. (It is 1 in one dimension and 3/4 in two dimensions.) Can you explain this trend qualitatively?

## 7.12

Calculate the entropy for the cream-in-your-coffee problem, and reproduce the results in Figure 7.16.