Information on calculating and error on physics is important as you will know the main reasons and causes of these types of errors and analysis. You can also find information on the very subject as to how can you reduce the risks of wrong calculations and errors. Collecting information also means that you should get the ideas from where you can get the right sources which will certainly help you reduce the chances or errors in the particular subject.
Computing is another good idea while measuring and analysing error in physics. Though there are also many sources which are important in this field of research but still you should keep looking for other ways as well.
Using internet is also important to research on finding new ways to analyse your specific needs. Physics is a complex subject and you will need the internet to find ways to reduce the level of errors in any specific problem. By using the internet, you will certainly get to know about different ways to reduce errors and different complex physics calculations.
To reduce relative errors, there are also many ways which you can also find from the internet. You can also meet experienced people or physics instructors who will tell you all about how you can reduce the errors in a specific problem.