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FMath - MathML 3.0 Implementation

2 MathML Fundamentals
    2.1 MathML Syntax and Grammar
        2.1.5 MathML Attribute Values
            2.1.5.2 Length Valued Attributes
            2.1.5.3 Color Valued Attributes
        2.1.6 Attributes Shared by all MathML Elements
        2.1.7 Collapsing Whitespace in Input
    2.2 The Top-Level math Element
3 Presentation Markup
    3.1 Introduction
        3.1.10 Mathematics style attributes common to presentation elements
    3.2 Token Elements
        3.2.1 MathML characters in token elements
            3.2.1.1 Alphanumeric symbol characters
            3.2.1.2 <mglyph/>
        3.2.2 Mathematics style attributes common to token elements
            3.2.2.1 Deprecated style attributes on token elements
        3.2.3 Identifier <mi>
        3.2.4 Number <mn>
        3.2.5 Operator, Fence, Separator or Accent<mo>
        3.2.6 Text <mtext>
        3.2.7 Space <mspace/>
        3.2.8 String Literal <ms>
    3.3 General Layout Schemata
        3.3.1 Horizontally Group Sub-Expressions <mrow>
        3.3.2 Fractions <mfrac>
        3.3.3 Radicals <msqrt>, <mroot>
        3.3.4 Style Change <mstyle>
        3.3.5 Error Message <merror>
        3.3.6 Adjust Space Around Content<mpadded>
        3.3.7 Making Sub-Expressions Invisible <mphantom>
        3.3.8 Expression Inside Pair of Fences<mfenced>
        3.3.9 Enclose Expression Inside Notation<menclose>
    3.4 Script and Limit Schemata
        3.4.1 Subscript <msub>
        3.4.2 Superscript <msup>
        3.4.3 Subscript-superscript Pair <msubsup>
        3.4.4 Underscript <munder>
        3.4.5 Overscript <mover>
        3.4.6 Underscript-overscript Pair<munderover>
        3.4.7 Prescripts and Tensor Indices<mmultiscripts>
    3.5 Tabular Math
        3.5.1 Table or Matrix<mtable>
        3.5.2 Row in Table or Matrix <mtr>
        3.5.3 Labeled Row in Table or Matrix<mlabeledtr>
        3.5.4 Entry in Table or Matrix <mtd>
    3.6 Elementary Math
        3.6.1 Stacks of Characters <mstack>
        3.6.2 Long Division <mlongdiv>
        3.6.3 Group Rows with Similiar Positions <msgroup>
        3.6.4 Rows in Elementary Math <msrow>
        3.6.5 Carries, Borrows, and Crossouts <mscarries>
        3.6.6 A Single Carry <mscarry>
        3.6.7 Horizontal Line <msline/>
    3.7 Enlivening Expressions
        3.7.1 Bind Action to Sub-Expression<maction>
4 Content Markup
    4.2 Content MathML Elements Encoding Expression Structure
        4.2.1 Numbers <cn>
        4.2.2 Content Identifiers <ci>
        4.2.3 Content Symbols <csymbol>
        4.2.4 String Literals <cs>
        4.2.5 Function Application <apply>
        4.2.6 Bindings and Bound Variables <bind> and <bvar>
        4.2.7 Structure Sharing <share>
        4.2.8 Attribution via semantics
        4.2.9 Error Markup <cerror>
    4.4 Content MathML for Specific Operators and Constants
        4.4.1 Functions and Inverses
        4.4.2 Arithmetic, Algebra and Logic
        4.4.3 Relations
        4.4.4 Calculus and Vector Calculus
        4.4.5 Theory of Sets
        4.4.6 Sequences and Series
        4.4.7 Elementary classical functions
        4.4.8 Statistics
        4.4.9 Linear Algebra
        4.4.10 Constant and Symbol Elements

3 Presentation Markup

3.4 Script and Limit Schemata

3.4.6 Underscript-overscript Pair <munderover>

3.4.6.1 Description

The munderover element attaches accents or limits placed both over and under a base using the syntax

<munderover> base underscript overscript </munderover>

It always sets displaystyle to "false" within underscript and overscript, but increments scriptlevel by 1 only when accentunder or accent, respectively, are "false". Within base, it always leaves both attributes unchanged.

If base is an operator with movablelimits="true" (or an embellished operator whose mo element core has movablelimits="true"), and displaystyle="false", then underscript and overscript are drawn in a subscript and superscript position, respectively. In this case, the accentunder and accent attributes are ignored. This is often used for limits on symbols such as &sum;.

3.4.6.2 Attributes

munderover elements accept the attributes listed below in addition to those specified in Section 3.1.10 Mathematics style attributes common to presentation elements.

Name values default
accent "true" | "false" automatic
Specifies whether overscript is drawn as an "accent" or as a limit. An accent is drawn the same size as the base (without incrementing scriptlevel) and is drawn closer to the base.
accentunder "true" | "false" automatic
Specifies whether underscript is drawn as an "accent" or as a limit. An accent is drawn the same size as the base (without incrementing scriptlevel) and is drawn closer to the base.
align "left" | "right" | "center" center
Specifies whether the scripts are aligned left, center, or right under/over the base.
overspace length 0.08em
The space between base and overscript.
underspace length 0.08em
The space between base and underscript.

FMath Component Test

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