Posted in ninja maths, radians.

I'll hold up my hands here and say: most of the secrets of the mathematical ninja are guides to showing off. Few of them have much practical use beyond making everyone else in the class look at you funny. This one - converting degrees into radians - is different. If

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Posted in free-for-all friday.

Here we all are again, the weekend looming large, the sun threatening to come out, and... a pile of work to do. Well, what can I help you with this week? Just drop me a comment below and I'll do what I can to answer it.

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Posted in probability, statistics.

You don't see many run-down, out-of-business casinos, which should serve as a tip-off: almost nobody beats the house in the long run. In this article, I'll show you - using the binomial distribution and the normal distribution - why that is. Sure, you might get a few people who come

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Posted in logarithms, ninja maths.

You might think 'when would I ever write to an abstract concept like logarithms', but you'd be surprised. I had occasion to write this letter a few weeks ago: Dear Base 10 Logarithms, I'm very sorry that I bullied you. I recall saying things like 'grown-ups always use natural logs',

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Posted in free-for-all friday.

I believe it's traditional to do a joke about May The Fourth be with you, but it was old when I first heard it, about 15 years ago. So I'll kind of resist, but only in a way that still makes it clear I'd love to do the bad joke.

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Posted in ranting.

If you want to frighten an A-level maths student, you don't need to produce a high-budget horror movie; you just need to produce a fraction. Or a fractionstein, as I like to call it. I want to try to cure you of your irrational phobia of fractions. I agree, they're

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