run("CPython/wrapper")

y = [0,2,5,8,15,25, 20, 16,4,-2,-5]
x = [0,10,20,30,40,50, 60, 70, 80, 90, 100]

r = hfitoff(y, x)
print r

plot([y,r[5]], ["data", "fit"], [x, r[4]])