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<includeonly><cite {{#ifeq:{{{noid}}}|noid||id="math_{{{1}}}"}}><span class="reference plainlinksneverexpand">'''{{#if: {{{2| }}}|[[#equation_{{{1}}}|{{{2}}}]]|[[#equation_{{{1}}}|{{{1}}}]]}}'''</span></cite></includeonly><noinclude>
The pair of templates {{tl|EquationRef}} and {{tl|EquationNote}} is used for labeling equations in text.

For example, '''<nowiki>:{{EquationRef|Eq. 1}} <math>x^2+x+1=0</math></nowiki>''' results in:
:{{EquationRef|Eq. 1}} <math>x^2+x+1=0</math>
Here, the identifier "'''Eq. 1'''" is a label which can be later referred to with a call to {{tl|EquationNote}}. That is, '''<nowiki>{{EquationNote|Eq. 1}}</nowiki>''' produces a link {{EquationNote|Eq. 1}} to this equation.

Similarly, '''<nowiki>:{{EquationRef|2|Eq. 2:}} <math>x^2-2x+1=0</math></nowiki>''' results in
:{{EquationRef|2|Eq. 2:}} <math>x^2-2x+1=0</math>
which can be referred to by '''<nowiki>{{EquationNote|2}}</nowiki>''' (i.e., {{EquationNote|2}}) or even '''<nowiki>{{EquationNote|2|Equation 2}}</nowiki>''' (i.e., {{EquationNote|2|Equation 2}}).

This template can be used together with {{tl|NumBlk}} to produce nicely formatted numbered equations.  For instance:

* '''<nowiki>{{NumBlk|::|<math>x^2+x+1=0</math>|{{EquationRef|3}}}}</nowiki>''' gives

{{NumBlk|::|<math>x^2+x+1=0</math>|{{EquationRef|3}}}}

:which may then be referred to by '''<nowiki>{{EquationNote|3}}</nowiki>''' (i.e., {{EquationNote|3}}) or even '''<nowiki>{{EquationNote|3|Eq. 3}}</nowiki>''' (i.e., {{EquationNote|3|Eq. 3}}). 

* '''<nowiki>{{NumBlk|::|<math>x^2+x+1=0</math>|{{EquationRef|4|Eq.4}}}}</nowiki> gives

{{NumBlk|::|<math>x^2+x+1=0</math>|{{EquationRef|4|Eq.4}}}}

:which may be referred to by '''<nowiki>{{EquationNote|4}}</nowiki>''' (i.e., {{EquationNote|4}}).

* '''<nowiki>{{NumBlk|::|<math>x^2+x+1=0</math>|{{EquationRef|Eq.5}}}}</nowiki>''' gives

{{NumBlk|::|<math>x^2+x+1=0</math>|{{EquationRef|Eq.5}}}}

:which may be referred to by '''<nowiki>{{EquationNote|Eq.5}}</nowiki>''' (i.e., {{EquationNote|Eq.5}}).

</noinclude>

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