- In each case, (a) or (b), spins are generated according to
distribution and so values of
observables are calculated as
- If we had not been careful about generating the spin values,
but say chosen them uniformly, then we must use
- This is correct, but numerically hopeless. The wide variation
in exponential (remember
**H**proportional to size) would give a huge standard deviation in .

Geoffrey Fox, Northeast Parallel Architectures Center at Syracuse University, gcf@npac.syr.edu