Y = ceil(X)
X
X = [-1.9 -0.2 3.4 5.6 7.0] ceil(X) = [-1 0 4 6 7]
X = [-1.9 -0.2 3.4 5.6 7.0]
ceil(X) = [-1 0 4 6 7]
fix
floor
round
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