Matrizen

Eingabefelder für Matrizen können mit dem Eingabetyp matrix im input Element erzeugt werden.

Die Zellen einer Matrix müssen entweder vollständig aus Zahlen oder vollständig aus Ausdrücken bestehen. Es ist nicht erlaubt, diese beiden Eingabetypen innerhalb einer Matrix zu mischen.

Example

<p>
    Geben Sie die Identitätsmatrix der Größe <m>2 \times 2</m> ein:
</p>
<p>
    Antwort: <input>
        <matrix>
            <matrixrow>
                <number>1</number>
                <number>0</number>
            </matrixrow>
            <matrixrow>
                <number>0</number>
                <number>1</number>
            </matrixrow>
        </matrix>
    </input>
</p>

Attribute

Das matrix Element unterstützt die folgenden Attribute:

Attribut	Typ	Standardwert	Beschreibung
`credits`	`xs:nonNegativeInteger`	`1`	Number of credit points the user gets awarded for this input value. If this input value is part of another input value (such as a vector or a set), then the credits of the child input values are interpreted as relative weights. That means the top level input value has the absolute credits as specified in its credits attribute and each child input value contributes to this number its credits attribute value divided by the sum of all credits attribute values of all children.
`defaultcolumns`	`xs:positiveInteger \| Auto`	-	Initial number of columns in this matrix that are already there when the user loads the page. When this attribute is set to auto, the matrix initially has as many columns as the first matrix written as solution in this input value element.
`defaultrows`	`xs:positiveInteger \| Auto`	-	Initial number of rows in this matrix that are already there when the user loads the page. When this attribute is set to auto, the matrix initially has as many rows as the first matrix written as solution in this input value element.
`maxcolumns`	`xs:positiveInteger \| Unbounded`	-	Maximum number of columns that the user is allowed to put in the matrix.
`maxrows`	`xs:positiveInteger \| Unbounded`	-	Maximum number of rows that the user is allowed to put in the matrix.
`mincolumns`	`xs:positiveInteger`	-	Minimum number of columns that the user is allowed to put in the matrix.
`minrows`	`xs:positiveInteger`	-	Minimum number of rows that the user is allowed to put in the matrix.
`model`	`xs:Name`	-	Name of the model to use for this input value. If this attribute is not set, the input model associated to the input field containing this input value is used.

Das matrixrow Element unterstützt keine Attribute.