Long variable names make mathematically oriented code unreadable. A short half-liner becomes a multi-line monstrosity. What you need to understand is that in ma

Long variable names make mathematically oriented code unreadable. A short half-liner becomes a multi-line monstrosity. What you need to understand is that in mathematical code, the variables themselves are of secondary importance, while the structure of the expression is primary. With long names, you cannot see what's going on.