Ceiling function: Difference between revisions
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The '''ceiling function,''' also known as the "least integer function," gives the least integer greater than or equal to its argument. The ceiling of <math>x</math> is usually denoted by <math>\lceil x \rceil</math>. The action of the function is also described by the phrase "rounding up." On the negative [[real number]]s, this corresponds to the action "dropping everything after the [[decimal point]] | The '''ceiling function,''' also known as the "least integer function," gives the least integer greater than or equal to its argument. The ceiling of <math>x</math> is usually denoted by <math>\lceil x \rceil</math>. The action of the function is also described by the phrase "rounding up." On the negative [[real number]]s, this corresponds to the action "dropping everything after the [[decimal point]]". | ||
==Examples== | ==Examples== | ||
Revision as of 16:57, 24 November 2007
The ceiling function, also known as the "least integer function," gives the least integer greater than or equal to its argument. The ceiling of 
is usually denoted by 
. The action of the function is also described by the phrase "rounding up." On the negative real numbers, this corresponds to the action "dropping everything after the decimal point".
