Art of Problem Solving

Ceiling function: Difference between revisions

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==See Also==
==See Also==
*[[Greatest integer function]]
*[[Floor function]]

Revision as of 11:31, 29 June 2006

The ceiling function, also known as the "least integer function," gives the least integer greater than or equal to its argument. The ceiling of $x$ is usually denoted by $\lceil x \rceil$.

For an example:

$\lceil 4.5 \rceil$ = 5

$\lceil -e \rceil$ = -2

See Also