ceil
Round toward positive infinity
Description
Examples
Round Matrix Elements Toward Positive Infinity
X = [-1.9 -0.2 3.4; 5.6 7 2.4+3.6i]; Y = ceil(X)
Y = 2×3 complex
-1.0000 + 0.0000i 0.0000 + 0.0000i 4.0000 + 0.0000i
6.0000 + 0.0000i 7.0000 + 0.0000i 3.0000 + 4.0000i
Round Duration Values Toward Positive Infinity
Round each value in a duration array to the nearest number of seconds greater than or equal to that value.
t = hours(8) + minutes(29:31) + seconds(1.23);
t.Format = 'hh:mm:ss.SS'
t = 1x3 duration
08:29:01.23 08:30:01.23 08:31:01.23
Y1 = ceil(t)
Y1 = 1x3 duration
08:29:02.00 08:30:02.00 08:31:02.00
Round each value in t to the nearest number of hours greater than or equal to that value.
Y2 = ceil(t,'hours')
Y2 = 1x3 duration
09:00:00.00 09:00:00.00 09:00:00.00
Input Arguments
X
— Input array
scalar | vector | matrix | multidimensional array | table | timetable
Input array, specified as a scalar, vector, matrix, multidimensional array, table, or
timetable. For complex X
, ceil
treats
the real and imaginary parts independently.
ceil
converts logical and char
elements
of X
into double
values.
Data Types: single
| double
| int8
| int16
| int32
| int64
| uint8
| uint16
| uint32
| uint64
| char
| logical
| table
| timetable
Complex Number Support: Yes
t
— Input duration
duration
array
Input duration, specified as a duration
array.
unit
— Unit of time
'seconds'
(default) | 'minutes'
| 'hours'
| 'days'
| 'years'
Unit of time, specified as 'seconds'
, 'minutes'
, 'hours'
, 'days'
,
or 'years'
. A duration of 1 year is equal to exactly
365.2425 24-hour days.
Extended Capabilities
Tall Arrays
Calculate with arrays that have more rows than fit in memory.
The
ceil
function fully supports tall arrays. For more information,
see Tall Arrays.
C/C++ Code Generation
Generate C and C++ code using MATLAB® Coder™.
GPU Code Generation
Generate CUDA® code for NVIDIA® GPUs using GPU Coder™.
Thread-Based Environment
Run code in the background using MATLAB® backgroundPool
or accelerate code with Parallel Computing Toolbox™ ThreadPool
.
This function fully supports thread-based environments. For more information, see Run MATLAB Functions in Thread-Based Environment.
GPU Arrays
Accelerate code by running on a graphics processing unit (GPU) using Parallel Computing Toolbox™.
The ceil
function
fully supports GPU arrays. To run the function on a GPU, specify the input data as a gpuArray
(Parallel Computing Toolbox). For more information, see Run MATLAB Functions on a GPU (Parallel Computing Toolbox).
Distributed Arrays
Partition large arrays across the combined memory of your cluster using Parallel Computing Toolbox™.
This function fully supports distributed arrays. For more information, see Run MATLAB Functions with Distributed Arrays (Parallel Computing Toolbox).
Version History
Introduced before R2006aR2023a: Perform calculations directly on tables and timetables
The ceil
function can calculate on all variables within a table or
timetable without indexing to access those variables. All variables must have data types
that support the calculation. For more information, see Direct Calculations on Tables and Timetables.
MATLAB 명령
다음 MATLAB 명령에 해당하는 링크를 클릭했습니다.
명령을 실행하려면 MATLAB 명령 창에 입력하십시오. 웹 브라우저는 MATLAB 명령을 지원하지 않습니다.
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