The thing with the linear you learn in computer science, if its for transformations, is that you only go up to 3x3 matrices. Linear algebra is quite easy to do though, if you have a reasonable textbook you could teach yourself.
What other bits are you missing asides your linear?
I'm actually not too badly off on it,
as I was helping
write a textbook
on it (sort of the uninformed editor of such),
but could use the refresher class.
As to the rest, I don't have the total credits,
but probably have enough of the expected
background. The undergrad where I went last,
had tremendous overlap between the two degrees.
I think that I was 4 or so classes away from being
able to get a dual major. So, it wouldn't be too
big a deal. But, I'd have to re-do the classes for
an MS, essentially. As there was no overlap there.
So, it would mean starting over.