I'm an electronics engineer interested in math (so I started to tackle Q3 of MathQuizOne) and LiterateProgramming. I know a Roland Kaufmann, is that you? -- AndrewCates Ok, the guy I knew worked for an oil company. The Maths question I don't want to discuss. In my view my solution was correct and the objection incredibly pedantic. -- AndrewCates ---- CategoryHomePage