Taken task based approach for Session 3, day 1.
Removed introduction to dictionaries slide and accommodated the same
content while solving the problem.
def linspace(a, b, N):
lns = []
step = (float(b) - float(a)) / float(N - 1)
print step
for i in range(N):
lns.append(a + i*step)
return lns
print linspace(0, 5, 11)