I am writting a report and I have multiple systems of equations. I want to avoid have too big numbers (Equation 4.200 for example) and I dont want to link the numbering to the chapter or the section.
I want a personalized align enviroment that enummerates the equations as:
The first time I use it and
The second time I use and so on.
The normal numeration of the usual align enviroment or equation enviroment should not be afffected.
I have been trying for some hours but none of the answers seems to work :(
Thanks in advance!!