Template:Numbered block

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This template creates a numbered block which is usually used to number mathematical and chemical formulae. This template can be used together with {{EquationRef}} and {{EquationNote}} to produce formatted numbered equations if a back reference to an equation is wanted.

 Warning: This template may cause lint errors when used with leading colons :, leading asterisks *, or leading hash symbols #. Please refer to § Indentation other than using parameter |2=, § Unordered list, and § Ordered list for more information.

Usage

{{Numbered block|<1>|<2>|<3>|RawN=<>|LnSty=<>|Border=<>}}

Parameters

Parameters |1=, |2=, and |3= of this template are required. In addition, there are three optional parameters |RawN=, |LnSty= and |Border=.

• |1=: Specify indentation. The more colons : you put, the further indented the block will be, up to a limit of 20. This parameter can be empty if no indentation is needed.
• |2=: The body or content of the block.
• |3=: Specify the block number.
• |RawN=: If a non-empty non-whitespace value, no extra formatting will be applied to the block number.
• |LnSty=: Specify the line style.
• |Border=: If set, put a box around the equation. (Experimental.)

Examples

Formulae may render HTML
<syntaxhighlight lang="wikitext" inline> $y=ax+b$ (Eq. 3) </syntaxhighlight>	$y=ax+b$ (Eq. 3)
<syntaxhighlight lang="wikitext" inline> $ax^{2}+bx+c=0$ (Eq. 3) </syntaxhighlight>	$ax^{2}+bx+c=0$ (Eq. 3)
<syntaxhighlight lang="wikitext" inline> $\Psi (x_{1},x_{2})=U(x_{1})V(x_{2})$ (1) </syntaxhighlight>	$\Psi (x_{1},x_{2})=U(x_{1})V(x_{2})$ (1)
<syntaxhighlight lang="wikitext" inline> Fe3+ + H2O2 → Fe2+ + HOO• + H+ (2) </syntaxhighlight>	Fe3+ + H2O2 → Fe2+ + HOO• + H+ (2)
<syntaxhighlight lang="wikitext" inline> ${\ce {H+ + CO3^2- -> HCO3^-}}$ (3) </syntaxhighlight>	${\ce {H+ + CO3^2- -> HCO3^-}}$ (3)
Indentation
<syntaxhighlight lang="wikitext" inline> $\mathbf {a} (t)={\frac {d}{dt}}\mathbf {v} (t)$ (3.5) </syntaxhighlight>	$\mathbf {a} (t)={\frac {d}{dt}}\mathbf {v} (t)$ (3.5)
<syntaxhighlight lang="wikitext" inline> $\mathbf {a} (t)={\frac {d}{dt}}\mathbf {v} (t)$ (1) </syntaxhighlight>	$\mathbf {a} (t)={\frac {d}{dt}}\mathbf {v} (t)$ (1)
<syntaxhighlight lang="wikitext" inline> $\mathbf {a} (t)={\frac {d}{dt}}\mathbf {v} (t)$ (13.7) </syntaxhighlight>	$\mathbf {a} (t)={\frac {d}{dt}}\mathbf {v} (t)$ (13.7)
<syntaxhighlight lang="wikitext" inline> $\mathbf {a} (t)={\frac {d}{dt}}\mathbf {v} (t)$ (1.2) </syntaxhighlight>	$\mathbf {a} (t)={\frac {d}{dt}}\mathbf {v} (t)$ (1.2)
Formatting of equation number
<syntaxhighlight lang="wikitext" inline> $\mathbf {a} (t)={\frac {d}{dt}}\mathbf {v} (t)$ 3.5 </syntaxhighlight>	$\mathbf {a} (t)={\frac {d}{dt}}\mathbf {v} (t)$ 3.5
<syntaxhighlight lang="wikitext" inline> $\mathbf {a} (t)={\frac {d}{dt}}\mathbf {v} (t)$ <3.5> </syntaxhighlight>	$\mathbf {a} (t)={\frac {d}{dt}}\mathbf {v} (t)$ <3.5>
<syntaxhighlight lang="wikitext" inline> $\mathbf {a} (t)={\frac {d}{dt}}\mathbf {v} (t)$ [3.5] </syntaxhighlight>	$\mathbf {a} (t)={\frac {d}{dt}}\mathbf {v} (t)$ [3.5]
<syntaxhighlight lang="wikitext" inline> $\mathbf {a} (t)={\frac {d}{dt}}\mathbf {v} (t)$ [3.5] </syntaxhighlight>	$\mathbf {a} (t)={\frac {d}{dt}}\mathbf {v} (t)$ [3.5]
<syntaxhighlight lang="wikitext" inline> $\mathbf {a} (t)={\frac {d}{dt}}\mathbf {v} (t)$ ([3.5]) </syntaxhighlight>	$\mathbf {a} (t)={\frac {d}{dt}}\mathbf {v} (t)$ ([3.5])
<syntaxhighlight lang="wikitext" inline> $\mathbf {a} (t)={\frac {d}{dt}}\mathbf {v} (t)$ [3.5] </syntaxhighlight>	$\mathbf {a} (t)={\frac {d}{dt}}\mathbf {v} (t)$ [3.5]
<syntaxhighlight lang="wikitext" inline> $\mathbf {a} (t)={\frac {d}{dt}}\mathbf {v} (t)$ $(3.5)$ </syntaxhighlight>	$\mathbf {a} (t)={\frac {d}{dt}}\mathbf {v} (t)$ $(3.5)\,$
Line style
<syntaxhighlight lang="wikitext" inline> $\mathbf {a} (t)={\frac {d}{dt}}\mathbf {v} (t)$ (3.5) </syntaxhighlight>	$\mathbf {a} (t)={\frac {d}{dt}}\mathbf {v} (t)$ (3.5)
<syntaxhighlight lang="wikitext" inline> $\mathbf {a} (t)={\frac {d}{dt}}\mathbf {v} (t)$ (3.5) </syntaxhighlight>	$\mathbf {a} (t)={\frac {d}{dt}}\mathbf {v} (t)$ (3.5)
<syntaxhighlight lang="wikitext" inline> $\mathbf {a} (t)={\frac {d}{dt}}\mathbf {v} (t)$ [3.5] </syntaxhighlight>	$\mathbf {a} (t)={\frac {d}{dt}}\mathbf {v} (t)$ [3.5]
<syntaxhighlight lang="wikitext" inline> $\mathbf {a} (t)={\frac {d}{dt}}\mathbf {v} (t)$ [3.5] </syntaxhighlight>	$\mathbf {a} (t)={\frac {d}{dt}}\mathbf {v} (t)$ [3.5]
<syntaxhighlight lang="wikitext" inline> $\mathbf {a} (t)={\frac {d}{dt}}\mathbf {v} (t)$ [3.5] </syntaxhighlight>	$\mathbf {a} (t)={\frac {d}{dt}}\mathbf {v} (t)$ [3.5]
<syntaxhighlight lang="wikitext" inline> $\mathbf {a} (t)={\frac {d}{dt}}\mathbf {v} (t)$ [3.5] </syntaxhighlight>	$\mathbf {a} (t)={\frac {d}{dt}}\mathbf {v} (t)$ [3.5]
<syntaxhighlight lang="wikitext" inline> $\mathbf {a} (t)={\frac {d}{dt}}\mathbf {v} (t)$ [3.5] </syntaxhighlight>	$\mathbf {a} (t)={\frac {d}{dt}}\mathbf {v} (t)$ [3.5]
Indentation other than using parameter |2=
<syntaxhighlight lang="wikitext"> The following equations $3x+2y-z=1$ $2x-2y+4z=-2$ $-2x+y-2z=0$ form a system of three equations. </syntaxhighlight>	The following equations $3x+2y-z=1$ $2x-2y+4z=-2$ $-2x+y-2z=0$ form a system of three equations.
<syntaxhighlight lang="wikitext"> The following equations $3x+2y-z=1$ (1) $2x-2y+4z=-2$ (2) $-2x+y-2z=0$ (3) form a system of three equations. </syntaxhighlight>	The result is not rendered as there may be lint errors. Combining leading colons (description lists) with {{Numbered block}} in wikimarkup could be problematic.
<syntaxhighlight lang="wikitext"> The following equations $3x+2y-z=1$ (1) $2x-2y+4z=-2$ (2) $-2x+y-2z=0$ (3) form a system of three equations. </syntaxhighlight>	The following equations $3x+2y-z=1$ (1) $2x-2y+4z=-2$ (2) $-2x+y-2z=0$ (3) form a system of three equations.
<syntaxhighlight lang="wikitext"> The following equations $3x+2y-z=1$ (1) $2x-2y+4z=-2$ (2) $-2x+y-2z=0$ (3) form a system of three equations. </syntaxhighlight>	The following equations $3x+2y-z=1$ (1) $2x-2y+4z=-2$ (2) $-2x+y-2z=0$ (3) form a system of three equations.
<syntaxhighlight lang="wikitext"> The following equations $3x+2y-z=1$ (1) $2x-2y+4z=-2$ (2) $-2x+y-2z=0$ (3) form a system of three equations. </syntaxhighlight>	The following equations $3x+2y-z=1$ (1) $2x-2y+4z=-2$ (2) $-2x+y-2z=0$ (3) form a system of three equations.
Unordered list
<syntaxhighlight lang="wikitext"> $3x+2y-z=1$ $2x-2y+4z=-2$ $-2x+y-2z=0$ </syntaxhighlight>	$3x+2y-z=1$ $2x-2y+4z=-2$ $-2x+y-2z=0$
<syntaxhighlight lang="wikitext"> $3x+2y-z=1$ (1) $2x-2y+4z=-2$ (2) $-2x+y-2z=0$ (3) </syntaxhighlight>	The result is not rendered as there may be lint errors. Combining leading asterisks (unordered lists) with {{Numbered block}} in wikimarkup could be problematic.
<syntaxhighlight lang="wikitext"> $3x+2y-z=1$ (Eq. 1) $2x-2y+4z=-2$ (Eq. 2) $-2x+y-2z=0$ (Eq. 3) </syntaxhighlight>	$3x+2y-z=1$ (Eq. 1) $2x-2y+4z=-2$ (Eq. 2) $-2x+y-2z=0$ (Eq. 3)
<syntaxhighlight lang="wikitext"> $3x+2y-z=1$ (Eq. 1) $2x-2y+4z=-2$ (Eq. 2) $-2x+y-2z=0$ (Eq. 3) </syntaxhighlight>	$3x+2y-z=1$ (Eq. 1) $2x-2y+4z=-2$ (Eq. 2) $-2x+y-2z=0$ (Eq. 3)
Ordered list
<syntaxhighlight lang="wikitext"> $3x+2y-z=1$ $2x-2y+4z=-2$ $-2x+y-2z=0$ </syntaxhighlight>	$3x+2y-z=1$ $2x-2y+4z=-2$ $-2x+y-2z=0$
<syntaxhighlight lang="wikitext"> $3x+2y-z=1$ (1) $2x-2y+4z=-2$ (2) $-2x+y-2z=0$ (3) </syntaxhighlight>	The result is not rendered as there may be lint errors. Combining leading hash symbols (ordered lists) with {{Numbered block}} in wikimarkup could be problematic.
<syntaxhighlight lang="wikitext"> $3x+2y-z=1$ (Eq. 1) $2x-2y+4z=-2$ (Eq. 2) $-2x+y-2z=0$ (Eq. 3) </syntaxhighlight>	$3x+2y-z=1$ (Eq. 1) $2x-2y+4z=-2$ (Eq. 2) $-2x+y-2z=0$ (Eq. 3)
<syntaxhighlight lang="wikitext"> $3x+2y-z=1$ (Eq. 1) $2x-2y+4z=-2$ (Eq. 2) $-2x+y-2z=0$ (Eq. 3) </syntaxhighlight>	$3x+2y-z=1$ (Eq. 1) $2x-2y+4z=-2$ (Eq. 2) $-2x+y-2z=0$ (Eq. 3)
Border
<syntaxhighlight lang="wikitext"> $y=ax+b$ (Eq. 3) </syntaxhighlight>	$y=ax+b$ (Eq. 3)
<syntaxhighlight lang="wikitext"> $y=ax+b$ (Eq. 3) </syntaxhighlight>	$y=ax+b$ (Eq. 3)

When content of the blocks and block numbers are far apart

Markup	<syntaxhighlight lang="wikitext"> $a^{2}+b^{2}=(a+bi)(a-bi)$ (1) $a^{2}-b^{2}=(a+b)(a-b)$ (2) $e^{ix}=\cos x+i\sin x$ (3) $\sin ^{2}\theta +\cos ^{2}\theta =1$ (4) $\sin(2\theta )=2\sin \theta \cos \theta$ (5) </syntaxhighlight>
Renders as	$a^{2}+b^{2}=(a+bi)(a-bi)$ (1) $a^{2}-b^{2}=(a+b)(a-b)$ (2) $e^{ix}=\cos x+i\sin x$ (3) $\sin ^{2}\theta +\cos ^{2}\theta =1$ (4) $\sin(2\theta )=2\sin \theta \cos \theta$ (5)

Markup	<syntaxhighlight lang="wikitext"> $a^{2}+b^{2}=(a+bi)(a-bi)$ (1) $a^{2}-b^{2}=(a+b)(a-b)$ (2) $e^{ix}=\cos x+i\sin x$ (3) $\sin ^{2}\theta +\cos ^{2}\theta =1$ (4) $\sin(2\theta )=2\sin \theta \cos \theta$ (5) </syntaxhighlight>
Renders as	$a^{2}+b^{2}=(a+bi)(a-bi)$ (1) $a^{2}-b^{2}=(a+b)(a-b)$ (2) $e^{ix}=\cos x+i\sin x$ (3) $\sin ^{2}\theta +\cos ^{2}\theta =1$ (4) $\sin(2\theta )=2\sin \theta \cos \theta$ (5)

Markup	<syntaxhighlight lang="wikitext"> $a^{2}+b^{2}=(a+bi)(a-bi)$ (1) $a^{2}-b^{2}=(a+b)(a-b)$ (2) $e^{ix}=\cos x+i\sin x$ (3) $\sin ^{2}\theta +\cos ^{2}\theta =1$ (4) $\sin(2\theta )=2\sin \theta \cos \theta$ (5) </syntaxhighlight>
Renders as	$a^{2}+b^{2}=(a+bi)(a-bi)$ (1) $a^{2}-b^{2}=(a+b)(a-b)$ (2) $e^{ix}=\cos x+i\sin x$ (3) $\sin ^{2}\theta +\cos ^{2}\theta =1$ (4) $\sin(2\theta )=2\sin \theta \cos \theta$ (5)

Markup	<syntaxhighlight lang="wikitext"> $a^{2}+b^{2}=(a+bi)(a-bi)$ (1) $a^{2}-b^{2}=(a+b)(a-b)$ (2) $e^{ix}=\cos x+i\sin x$ (3) $\sin ^{2}\theta +\cos ^{2}\theta =1$ (4) $\sin(2\theta )=2\sin \theta \cos \theta$ (5) </syntaxhighlight>
Renders as	$a^{2}+b^{2}=(a+bi)(a-bi)$ (1) $a^{2}-b^{2}=(a+b)(a-b)$ (2) $e^{ix}=\cos x+i\sin x$ (3) $\sin ^{2}\theta +\cos ^{2}\theta =1$ (4) $\sin(2\theta )=2\sin \theta \cos \theta$ (5)

Markup	<syntaxhighlight lang="wikitext"> (mouse over the row you want to highlight) $a^{2}+b^{2}=(a+bi)(a-bi)$ (1) $a^{2}-b^{2}=(a+b)(a-b)$ (2) $e^{ix}=\cos x+i\sin x$ (3) $\sin ^{2}\theta +\cos ^{2}\theta =1$ (4) $\sin(2\theta )=2\sin \theta \cos \theta$ (5) </syntaxhighlight>
Renders as	(mouse over the row you want to highlight) $a^{2}+b^{2}=(a+bi)(a-bi)$ (1) $a^{2}-b^{2}=(a+b)(a-b)$ (2) $e^{ix}=\cos x+i\sin x$ (3) $\sin ^{2}\theta +\cos ^{2}\theta =1$ (4) $\sin(2\theta )=2\sin \theta \cos \theta$ (5)

Positioning relative to surrounding images

Numbered blocks should be able to be placed around images that take up space on the left or right side of the screen. To ensure numbered block has access to the entire line, consider using a {{clear}}-like template.

To illustrate, consider the example:

Markup

[[Image:Bnet_fan2.png|frame|right|Fig.1: Bayesian Network representation of Eq.(6)]] [[Image:Bnet_fan2.png|frame|left|Fig.1: Bayesian Network representation of Eq.(6)]] <br><br>A Bayesian network (or a belief network) is a probabilistic graphical model that represents a set of variables and their probabilistic independencies. For example, a Bayesian network could represent the probabilistic relationships between diseases and symptoms. Given symptoms, the network can be used to compute the probabilities of the presence of various diseases. {{Numbered block|1=:|2=<math> P(a, b, \lambda) = P(a| \lambda) P(b | \lambda) P(\lambda)\, </math>,|3='''Eq.(6)'''|RawN=.}}

Renders as

Fig.1: Bayesian Network representation of Eq.(6) Fig.1: Bayesian Network representation of Eq.(6) A Bayesian network (or a belief network) is a probabilistic graphical model that represents a set of variables and their probabilistic independencies. For example, a Bayesian network could represent the probabilistic relationships between diseases and symptoms. Given symptoms, the network can be used to compute the probabilities of the presence of various diseases. $P(a,b,\lambda )=P(a|\lambda )P(b|\lambda )P(\lambda )\,$, Eq.(6)

If it is desirable for the numbered block to span the entire line, a {{clear}} should be placed before it.

Markup

[[Image:Bnet_fan2.png|frame|right|Fig.1: Bayesian Network representation of Eq.(6)]] [[Image:Bnet_fan2.png|frame|left|Fig.1: Bayesian Network representation of Eq.(6)]] <br><br>A Bayesian network (or a belief network) is a probabilistic graphical model that represents a set of variables and their probabilistic independencies. For example, a Bayesian network could represent the probabilistic relationships between diseases and symptoms. Given symptoms, the network can be used to compute the probabilities of the presence of various diseases. {{clear}} {{Numbered block|1=:|2=<math> P(a, b, \lambda) = P(a| \lambda) P(b | \lambda) P(\lambda)\, </math>,|3='''Eq.(6)'''|RawN=.}}

Renders as

Fig.1: Bayesian Network representation of Eq.(6) Fig.1: Bayesian Network representation of Eq.(6) A Bayesian network (or a belief network) is a probabilistic graphical model that represents a set of variables and their probabilistic independencies. For example, a Bayesian network could represent the probabilistic relationships between diseases and symptoms. Given symptoms, the network can be used to compute the probabilities of the presence of various diseases. $P(a,b,\lambda )=P(a|\lambda )P(b|\lambda )P(\lambda )\,$, Eq.(6)

Table caveat

Because {{Numbered block}} is implemented as a table, putting {{Numbered block}} within a table yields a nested table. Due to a bug in MediaWiki's handling of nested tables, {{Numbered block}} must be used carefully in this case. In particular, when indentation for the outer table is desired, use explicit <dl><dd>...</dd></dl> tags for indentation instead of a leading colon (:).

For example,

Markup	<syntaxhighlight lang="wikitext"> <dl><dd> {
Renders as	$(f*g)[n]\,$      ${\stackrel {\mathrm {def} }{=}}\sum _{m=-\infty }^{\infty }f[m]\cdot g[n-m]\,$ (Eq.1) $=\sum _{m=-\infty }^{\infty }f[n-m]\cdot g[m].\,$       (commutativity)

which shows how the outer <dl><dd>...</dd></dl> tags give the same indentation as a single colon (:) preceding the table should.

For another example,

Markup	<syntaxhighlight lang="wikitext"><dl><dd> <dl><dd> {
Renders as	The first parameter for indentation still works when used inside table. $ax^{2}+bx+c=0$ (Level 4) $ax^{2}+bx+c=0$ (Level 3) $ax^{2}+bx+c=0$ (Level 2) $ax^{2}+bx+c=0$ (Level 1) $ax^{2}+bx+c=0$ (Level 0)

which uses two sets of explicit tags to give the same indentation as two colons (::).

The above documentation is transcluded from Template:Numbered block/doc. (edit | history)
Editors can experiment in this template's sandbox (edit | diff) and testcases (edit) pages.
Add categories to the /doc subpage. Subpages of this template.