#elisp
The functions ffloor, fceiling, fround, and
ftruncate take a floating-point argument and return a floating-point
result whose value is a nearby integer. ffloor returns the
nearest integer below; fceiling, the nearest integer above;
ftruncate, the nearest integer in the direction towards zero;
fround, the nearest integer.
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GNU Emacs Lisp Reference Manual: Rounding OperationsGNU Emacs Lisp Reference Manual: Rounding Operations
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3.7 Rounding Operations
The functions ffloor , fceiling , fround , and
ftruncate take a floating-point argument and return a floating-point
result whose value is a nearby integer. ffloor returns the
nearest integer below; fceiling , the nearest integer above;
ftruncate , the nearest integer in the direction towards zero;
fround , the nearest integer.
Function: ffloor float This function rounds float to the next lower integral value, and
returns that value as a floating-point number.
Function: fceiling float This function ro Summary
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