r1 = [0..4]
assertEqual(r1[4], 4, 0.00001, "last element is included")

four = 4
zero = 0
r2 = [zero..four]
assertEqual(r2[4], 4, 0.00001, "last element is included")

five = int(four + 1)
r3 = [zero..five]
assertEqual(r3[4], 4, 0.00001, "second-to-last element is included")
assertEqual(r3[5], 5, 0.00001, "last element is included")

r4 = [int(zero + 1) .. int(five - 1)]
assertEqual(r4[0], 1, 0.00001, "first element is 1")
assertEqual(r4[2], 3, 0.00001, "second-to-last element is 3")
assertEqual(r4[3], 4, 0.00001, "last element is 4")