> The particular function I'm trying to memoize is a function of
> two integers. I was hoping it might be possible to write a
> memoize function that memoizes any function of a small arbitrary
> number of parameters. Thinking about it some more I'm beginning
> to this this is not possible.

It is not very costly to give multiple parameters as a tuple. I think
I remember reading that the native code compiler can do this without a
heap allocation. -Mike