Description:
Convert a specified sequence to a pure sequence.
Syntax:
A.i()
Note:
The function converts sequence A to a pure sequence. A pure sequence is a sequence where members have same data type.
The conversion is impossible when members of the sequence do not have same data type. Error is reported when members are modified and a pure sequence becomes not pure. When the computation involves an ordinary sequence or when it is expected that the result of the computation is not a pure sequence, the specified sequence will be automatically converted to an ordinary one.
Parameter:
|
A |
A sequence |
Return value:
A pure sequence
Example:
|
|
A |
|
|
1 |
=["a","c","d","e","f"] |
|
|
2 |
=A1.i() |
Convert sequence A1 to a pure sequence. |
|
3 |
=[1,2,3,4,5,6,7,"a"] |
|
|
4 |
=A3.i() |
As members of A3’s sequence don’t have same data type, error is reported when trying to convert it to a pure sequence. |
|
5 |
=A2(3)=8 |
Error is reported during execution of the expression because we change the 3d member in A2 to 8 and the originally pure sequence becomes not pure. |