[itamarst]

If it doesn't have day-to-day application, does it really matter?

I spent 20 years without using linear algebra. Now I'm doing a bunch of image processing algorithms and it's suddenly relevant... and it's mostly coming back. And for the new stuff I'm learning I got a book which I occasionally read at work.

[arvinsim]

I guess that applies for those who got a degree. But would be more interested on how a self taught developer would go about it.