ceil
Syntax
ceil(X)
Arguments
X is a scalar/vector/matrix.
Details
Functions floor and ceil map a real number to the largest previous and the smallest following integer, respectively. Function round maps a real number to the largest previous or the smallest following integer with the round half up rule.
Examples
$ ceil(2.1);
3
$ ceil(2.9);
3
$ ceil(-2.1);
-2
$ floor(2.1);
2
$ floor(2.9);
2
$ floor(-2.1);
-3
$ round(2.1);
2
$ round(2.9);
3
$ round(-2.1);
-2
$ m = 1.1 2.2 3.3 4.4 5.5 6.6 7.7 8.8 9.9 10$2:5;
$ m;
0 |
1 |
2 |
3 |
4 |
---|---|---|---|---|
1.1 |
3.3 |
5.5 |
7.7 |
9.9 |
2.2 |
4.4 |
6.6 |
8.8 |
10 |
$ ceil(m);
0 |
1 |
2 |
3 |
4 |
---|---|---|---|---|
2 |
4 |
6 |
8 |
10 |
3 |
5 |
7 |
9 |
10 |