** suivant:** Union of two sets
** monter:** Sets
** précédent:** Sets
** Table des matières**
** Index**

##

Definition : `set[]`

To define a set of elements, put the elements separated by a comma, with
`%{ ... %}` or `set[ ... ]` as delimiters.

Input :
`%{1,2,3,4%}`

`set[1,2,3,4]`

In the `Xcas` answers, the set delimiters are displayed
as
and
in order
not to confuse sets with lists.
For example,
1,2,3
is the set `%{1,2,3%}`,
unlike [1,2,3] (normal brackets) which is the list `[1,2,3]`.

Input :
`A:=%{1,2,3,4%}` or `A:=set[1,2,3,4]`

Output :
`
1,2,3,4
`
Input :
`B:=%{5,5,6,3,4%}` or `B:=set[5,5,6,3,4]`

Output :
`
5,6,3,4
`
**Remark**

The order in a set is not significant and
the elements in a set are all distincts. If you input
`B:=%{5,5,6,3,4%}` and `C:=%{3,4,5,3,6%}`, then
`B==C` will return `1`.

giac documentation written by Renée De Graeve and Bernard Parisse