<mmultiscripts>

The MathML <mmultiscripts> element allows you to create tensor-like objects. In a descriptive way tensors are multidimensional matrices (mathematical imprecise but exemplified). The degree of a tensor depends on the dimensionality of a representative array. For example, a number is a 0-dimensional array, or a 0th-order tensor. A 1-dimensional array (e.g. vectors) is a 1st-order tensor and so 2nd-order tensors are needed to represent square matrices. To learn more about the mathematical background of tensors refer to the entry on Wikipedia.

MathML uses a special syntax to describe subscripts and superscripts for both, postscripts and prescripts, attached to a base expression:

<mmultiscripts>
    base
     (subscript superscript)*
     [ <mprescripts/> (presubscript presuperscript)* ]
</mmultiscripts>

After the base expression you can specify a postsubscript and a postsuperscript. Prescripts are optional and are separated by the empty tag <mprescripts/> (only one <mprescripts /> element is allowed, otherwise you will get an DuplicateMprescripts error in the Error Console and "invalid-markup" in your rendering). In addition you are able to use <none/> as a placeholder for empty scripts (not for the base). See the examples section for a correct usage.

Attributes

class, id, style
Provided for use with stylesheets.
displaystyle
A Boolean value specifying whether more vertical space is used for displayed equations or, if set to false, a more compact layout is used to display formulas. The main effect is that larger versions of operators are displayed, when displaystyle is set to true. See also movablelimits on <mo>.
href
Used to set a hyperlink to a specified URI.
mathbackground
The background color. You can use #rgb, #rrggbb and HTML color names.
mathcolor
The text color. You can use #rgb, #rrggbb and HTML color names.
subscriptshift
The minimum space by which to shift the subscript below the baseline of the expression, as a CSS length.
This property is deprecated and will be removed in the future.
superscriptshift
The minimum space by which to shift the superscript above the baseline of the expression, as a CSS length.
This property is deprecated and will be removed in the future.

Examples

Using <mprescripts/>

Sample rendering:

Rendering in your browser: X d c b a

<math>

    <mmultiscripts>

        <mi>X</mi>      <!-- base expression -->

        <mi>d</mi>      <!-- postsubscript -->
        <mi>c</mi>      <!-- postsuperscript -->

        <mprescripts />
        <mi>b</mi>      <!-- presubscript -->
        <mi>a</mi>      <!-- presuperscript -->

    </mmultiscripts>

</math>

Using <none/>

Sample rendering:

Rendering in your browser: X c b

<math>

    <mmultiscripts>

        <mi>X</mi>      <!-- base expression -->

        <none />        <!-- postsubscript -->
        <mi>c</mi>      <!-- postsuperscript -->

        <mprescripts />
        <mi>b</mi>      <!-- presubscript -->
        <none />        <!-- presuperscript -->

    </mmultiscripts>

</math>

Specifications

Specification
MathML Core
# prescripts-and-tensor-indices-mmultiscripts

Browser compatibility

BCD tables only load in the browser

See also