I want to display the equation as (1) , (2), (3) and so on...... for one set of equations (section) and then I want to display the other set of equation (in another section) as (a), (b), (c), ...... and so on..... Is it possible to show both on the same document ?

In fact, I have a big document and I want to derive the expressions for different problems and for each problem or probably within one section I want to start from (1) , (2)..... and so on and on next section I again want to start the equations from (1), (2) and so on .

Please let me know if it is possible.

A sample equation is given as follows:

\frac{d^2 \bar{c}}{dx^2} - \frac{U}{D}\frac{d \bar{c}}{dx}- \frac{(p+K)\bar{c}}{D}=0


2 Answers 2


You can reset the equation counter


at the beginning of each section.

Alternatively, you can use the amsmath package and the command


At the start of one section you can go


and in another


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