Difference from "slope"
What exactly distinguishes direction from "slope"? From the definition at slope it appears that that term is meant independent of displacement, so conceivably "direction" could be meant to be dependent. But nothing in this article supports such an answer. To the contrary, the text here relies on the same displacement-independent terms "orthogonal", "diagonal" and "oblique". So, are the two just used synonymously? If so, what's the correct term to distinguish (1,2) from (4096,8192)? Micromegas (talk) 09:21, 12 March 2018 (UTC)