for i = 0.2 to 5
  print i
next i
if i <> 5.2 error "fractional"

for i = -5 to 5
  print i
next i
if i <> 6 error "single"

k = 0
for i = 1 to 2
  for j = 2 to 4
    k = k + 1
    print k
  next j
next i
if k <> 6 error "nested"
