e~2.718

[Tom Lehman]

e is an irrational number or non-repeating decimal like pi.  It is used
as the base number in natural logarithms.  Brad first suggested the use
of a base-10 common logarithm.  Dan Davies then suggested that Brad use
a natural logarithm because logically the area under the slope of the
curve would be getting smaller the farther you got from the xy axis
point of origin.  That's what I took out of this discussion.

Not a phd,

Tom Lehman