I am a mathematician, tutor and programmer.

In secondary school I excelled at maths competitions. I also competed in logic, computer science and puzzles. I have a maths degree and I work as a freelance one-to-one tutor. I am quite a geek and often overly pedantic, not just about maths.

In my answers, I aim to show the way rather than take you straight there. That way the person who asked the question can get at least some satisfaction working it out.

$$y={\ln\left({x\over m}-sa\right)\over r^2}$$