Ceiling

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The integer round-up of a value, LaTeX: x:

LaTeX: 
\mbox{Ceiling}(x) = \min \{ z : z \in \mathbb{Z}, \; z \ge x \}.</P>

Examples: LaTeX: \mbox{Ceiling}(5)=5, LaTeX: \mbox{Ceiling}(5.001)=6, LaTeX: \mbox{Ceiling}(-1.2) = -1. Also, see floor.


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