In [1]:
import math

In [2]:
a = (-2.1, -2., -1.9, -1.1, -1., -.9, -.1, 0, .1, .9, 1., 1.1, 1.9, 2., 2.1,)

In [3]:
for x in a:
    print(x, math.ceil(x))


-2.1 -2
-2.0 -2
-1.9 -1
-1.1 -1
-1.0 -1
-0.9 0
-0.1 0
0 0
0.1 1
0.9 1
1.0 1
1.1 2
1.9 2
2.0 2
2.1 3