man you ARE having a bad day....I thought today was gonna be crap but it's turned out just "significantly bad". I managed to get the practical done in good time....CAKE OR DEATH - WTF!?
But I've still got a load of maths questions to get finished before I go to bed, and I'm really struggling with this lagrange multiplier stuff and I havent even looked and div grad and curl! Looks like another late night