This is a documentation subpage for Template:EquationRef. It may contain usage information, categories and other content that is not part of the original template page.

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 ${\displaystyle x^{2}+x+1=0}$

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: ${\displaystyle x^{2}-2x+1=0}$

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}}}}

${\displaystyle x^{2}+x+1=0}$

(3)

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}}}}

${\displaystyle x^{2}+x+1=0}$

(Eq. 4)

which may be referred to by {{ EquationNote|4}} (i.e., 4).

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

${\displaystyle x^{2}+x+1=0}$

(Eq. 5)

which may be referred to by {{ EquationNote|Eq. 5}} (i.e., Eq. 5).

• {{ EqNote}}