I am having difficulty in following the cartesian co-ordinate sign convention in complex problems such as optical trains , combination of lenses+ mirrors,etc could anyone plz suggest whether i should switch to the other convention as i dont think it is an effective convention for such problems.
I am having difficulty in following the cartesian co-ordinate sign convention in complex problems such as optical trains , combination of lenses+ mirrors,etc could anyone plz suggest whether i should switch to the other convention as i dont think it is an effective convention for such problems.