The problem is taking a simple alegebraic equation involving only (), +, and * and expanding it by muliplying through to remove the ().

For example: (a+b+c)*(d+e) becomes: ad+bd+cd+ae+be+ce.

The issue is the equation is 64K and the result 3 million plus independent elements. So any package would need to handle some way to deal with the RAM blow up since it appears PERL's lack of ability to page heap is what is resulting in the "out of memory!" error.