Not much until you need to actually need to do something with the data, which is usually returned to you in a large, two-dimensional array, basically. At that

Not much until you need to actually need to do something with the data, which is usually returned to you in a large, two-dimensional array, basically. At that point, if you haven't figured out basic algebra at least, you'll have trouble conceptualizing the data. At best, this means you won't be as efficient as you could be, at worst, you'll write buggy code.