# Element Command

From GeoGebra Manual

Revision as of 09:46, 8 August 2011 by Andrea.duringer (talk | contribs)

- Element[List, Number n]
- Yields the
*n*^{th}element of the list. **Example:**`Element[{1, 3, 2}, 2]`

gives*3*, the second element of*{1, 3, 2}*.

- Element[Matrix, Row, Column]
- Yields the element of the matrix in the given row and column.
**Example:**`Element[{{1, 3, 2}, {0, 3, -2}}, 2, 3]`

gives*-2*, the third element of the second row of*{{1, 3, 2}, {0, 3, -2}}*.

- Element[List L, Index1, Index2, ...]
- Provided L is
*n*-dimensional list, one can specify up to*n*indices to obtain an element (or list of elements) at given coordinates. **Example:**Let L={{{1,2},{3,4}},{{5,6},{7,8}}}. Then`Element[L,1,2,1]`

returns*3*,`Element[L,2,2]`

returns*{7, 8}*.

**Note:**For this command to work, the list or matrix can contain elements of one object type only (e. g. only numbers or only points).

## CAS Syntax

- Element[List, Number n]
- Yields the
*n*^{th}element of the list. **Example:**`Element[{1, 3, 2}, 2]`

gives*3*, the second element of*{1, 3, 2}*.

- Element[Matrix, Row, Column]
- Yields the element of the matrix in the given row and column.
**Example:**`Element[{{1, 3, 2}, {0, 3, -2}}, 2, 3]`

gives*-2*, the third element of the second row of*{{1, 3, 2}, {0, 3, -2}}*.