I study mathematics, but naturally I have some mandatory programming classes I need to attend, and most importantly code for on the spot. We will be mostly as be using -as many of you can assume- octave and seeing how I already have a pretty beastly programming rig at my home, I was wondering just how cheap of a laptop could I get away with buying, while still getting responsive system (<2 second delay when opening up programs, low input lag, etc).
Would appreciate some recommendations, but I'd like to grasp overall what my basic specs should be (CPU and ram).