     suivant: Transform a list into monter: Lists and vectors précédent: Permuted list from its   Table des matières   Index

## Modify an element in a list : subsop

subsop modifies an element in a list. subsop takes as argument a list and an equality (an index=a new value) in all syntax modes, but in Maple syntax mode the order of the arguments is reversed.
Remark If the second argument is 'k=NULL', the element of index k is removed of the list.
Input in Xcas mode (the index of the first element is 0) :
subsop([0,1,2],1=5)
Or :
L:=[0,1,2];L:=5
Output :
[0,5,2]
Input in Xcas mode (the index of the first element is 0) :
subsop([0,1,2],'1=NULL')
Output :
[0,2]

Input in Mupad TI mode (the index of the first element is 1) :

subsop([0,1,2],2=5)
Or :
L:=[0,1,2];L:=5
Output :
[0,5,2]
In Maple mode the arguments are permuted and the index of the first element is 1.
Input :
subsop(2=5,[0,1,2])
Or :
L:=[0,1,2];L:=5
Output :
[0,5,2]     suivant: Transform a list into monter: Lists and vectors précédent: Permuted list from its   Table des matières   Index
giac documentation written by Renée De Graeve and Bernard Parisse