Pi, natural logarithm of 2 and e (using DPMI): This
program computes the number PI as well as the natural logarithm of 2 faster
than the XMS method. You can see the results in any of the radices 2-36.
This program computes also the value of number e.
It needs an 80386 or later and a DPMI (DOS Protected Mode Interface) server,
for example Windows or OS/2.