Function setSize #
Count the number of elements of a (multi)set. When a second parameter is ‘true’, count only the unique values.
A multi-dimension array will be converted to a single-dimension array before the operation.
Syntax #
math.setSize(set)
math.setSize(set, unique)
Parameters #
| Parameter |
Type |
Description |
a |
Array | Matrix |
A multiset |
Returns #
| Type |
Description |
| number |
The number of elements of the (multi)set |
Examples #
math.setSize([1, 2, 2, 4]) // returns 4
math.setSize([1, 2, 2, 4], true) // returns 3
See also #
setUnion,
setIntersect,
setDifference
