ABSTRACT

United States Supreme Court justice Potter Stewart famously observed

in 1964 that, although he was unable to provide a precise definition of

pornography, “I know it when I see it.” We would say the same is true

for experimental mathematics. Nevertheless, we realize that we owe our

readers at least an approximate initial definition (of experimental mathe-

matics, that is; you’re on your own for pornography) to get started with,

and here it is.