Template:EquationRef
The pair of templates {{EquationRef}} and {{EquationNote}} is used for labeling equations in text.
For example,
:{{EquationRef|Eq. 1}} <math>x^2+x+1=0</math>- Eq. 1
Here, the identifier "Eq. 1" is a label which can be later referred to with a call to {{EquationNote}}. That is, {{EquationNote|Eq. 1}} produces a link Eq. 1 to this equation.
Similarly,
:{{EquationRef|2|Eq. 2:}} <math>x^2-2x+1=0</math>- Eq. 2:
which can be referred to by {{EquationNote|2}} or even {{EquationNote|2|Equation 2}} (i.e., Equation 2).
This template can be used together with {{NumBlk}} to produce nicely formatted numbered equations. For instance:
{{NumBlk|::|<math>x^2+x+1=0</math>|{{EquationRef|3}}}}
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(3)
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- which may then be referred to by {{EquationNote|3}} or even {{EquationNote|3|Eq. 3}} (i.e., Eq. 3).
{{NumBlk|::|<math>x^2+x+1=0</math>|{{EquationRef|4|Eq.4}}}}
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(Eq. 4)
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- which may be referred to by {{EquationNote|4}} (i.e., 4).
{{NumBlk|::|<math>x^2+x+1=0</math>|{{EquationRef|Eq.5}}}}
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(Eq. 5)
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- which may be referred to by {{EquationNote|Eq. 5}} (i.e., Eq. 5).