BUILT-IN MATHEMATICA SYMBOL
Delete
Delete[expr, n]
deletes the element at position n in expr. If n is negative, the position is counted from the end.
Delete[expr, {i, j, ...}]
deletes the part at position 
.
Delete[expr, {{i1, j1, ...}, {i2, j2, ...}, ...}]
deletes parts at several positions.
- Deleting the head of a particular element in an expression is equivalent to applying FlattenAt to the expression at that point. »
- Deleting the head of a whole expression makes the head be Sequence. »
- Deleting a whole expression gives the result Sequence[].
- Delete works on SparseArray objects.
Delete the element at position 3:
| Out[1]= |  |
Delete at position 2 from the end:
| Out[1]= |  |
Delete at positions 1 and 3:
| Out[1]= |  |
Delete in a 2D array:
| Out[1]= |  |
New in 2 | Last modified in 5
