#elisp
Function:
ceiling number &optional divisorThis returns number , converted to an integer by rounding upward
(towards positive infinity).
(ceiling 1.2) ⇒ 2
(ceiling 1.7) ⇒ 2
(ceiling -1.2) ⇒ -1
(ceiling -1.7) ⇒ -1
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GNU Emacs Lisp Reference Manual: Numeric Conversions).
If divisor is specified, this uses the kind of division
operation that corresponds to mod , rounding downward.
(floor 1.2)
⇒ 1
(floor 1.7)
⇒ 1
(floor -1.2)
⇒ -2
(floor -1.7)
⇒ -2
(floor 5.99 3)
⇒ 1
<span>Function: ceiling number &optional divisor This returns number , converted to an integer by rounding upward
(towards positive infinity).
(ceiling 1.2)
⇒ 2
(ceiling 1.7)
⇒ 2
(ceiling -1.2)
⇒ -1
(ceiling -1.7)
⇒ -1
Function: round number &optional divisor This returns number , converted to an integer by rounding towards the
nearest integer. Rounding a value equidistant between two integers
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