Is Excel VBA's Rnd() really this bad?

Question

I need a pseudo random number generator for 2D Monte Carlo simulation that doesn\'t have the characteristic hyperplanes that you get with simple LCGs. I tested the random nu

Answer 1

As a balance between speed and goodness, I was thinking of combining them like

for...
  z = [rand()] ' good but slow.
  for .. ' just a few
     t = z + rnd()
     t = t - int(t)
     ...

Remember that good entropy + bad entropy = better entropy.

That said, only 0.05ms per [rand()].