Measure focal lengths for 2 lenses.  Use this data and design an
imaging system with a fixed object to image distance and variable
magnification.  Use ray matrices and plot the locus of positions of
the two lenses with respect to the image plane that maintains the
image at the same fixed position.  Also plot the magnification as a
function of the lens to image distance for the farthest lens from the
image.


My questions, How do I plot the locus of positions of the two lenses?
I think by using Matlab.

I measured the Focal lengths for both of them and the focal length
system and I have the length that measured from designing the image
system by taking length between 2 lenses. I made the ray matrices for
both of them. Now, How i can plot the locus positions and
magnification for 2 lenses? by using matlab.