In Python
iOverlap (a1, a2, b1, b2)
Write the function iOverlap that tests whether 2 closed
intervals overlap. It takes 4 numbers (ints or floats) a1, a2, b1,
b2 that describe the two closed intervals [a1,a2] and [b1,b2] of
the real number line, and returns True if these two closed
intervals overlap (even if at only one point) and False otherwise.
If a1>a2, then the interval [a1,a2] is empty. If b1>b2, then
the interval [b1,b2] is empty. Both intervals are...