Ceil: Round toward positive infinity
B = ceil(A) rounds the elements of A to the nearest integers greater than or equal to A. For complex A, the imaginary and real parts are rounded independently.
>> S = [-1.9, -0.2, 3.4, 5.6, 7.0, 2.4+3.6i]
S =
Columns 1 through 4
-1.9000 -0.2000 3.4000 5.6000
Columns 5 through 6
7.0000 2.4000 + 3.6000i
>> R=ceil(S)
R =
Columns 1 through 4
-1.0000 0 4.0000 6.0000
Columns 5 through 6
7.0000 3.0000 + 4.0000i