Very excited to give this a try!

A house is just a big box really. Why do humans love boxes so much?

Little boxes on the hillside, Little boxes made of ticky-tacky...

Little boxes on a hillside and they all look just the same.

The technique is called volume rendering. I'm not sure what library they specifically use but a popular one is VTK.

Wish this was around when I was a student!

I also mentally started thinking about integral solutions. I wonder if it's also because of the variable names... a,b,c tend to be used to represent integers (e.g. Fermat's Last Theorem, Euclid's algorithm etc).

x and y are more commmonly used to represent real numbers.

Random aside: once in high school I took a math puzzle test. The only problem I skipped was because they asked for "integral solutions." I knew the word "integral" only as belonging to calculus, about which I knew nearly nothing at the time. If I had realized in context it just meant "integer" I could have done it!

They did make it a tricky question!

Thanks for pointing that out. I'll use X and Y next time I share this story. Of course my daughter wouldn't have known at the time about the distinction, and neither did I - it having been too long since doing algebra ;)

Google Flights also tells you when a particular flight is often subject to delays. Very handy.

F# version that fits in a tweet:

  let r,n=Random(),1e7
  let d()=(r.NextDouble()-0.5)**2.0
  [0.0..n]
  |>Seq.sumBy(function _ when d()+d()<0.25->4.0/n|_->0.0)
  |>printfn "%f"

I happen to agree we should have an election, but I would point out:

1) Unlike EU commissioners, people can vote Theresa May out at the next general election. 2) The UK has a parliamentary democracy. It is not a presidential system. Theresa May was elected by her constituents. 3) Of the 14 prime ministers since the end of the Second World War, half of them (including Theresa May) assumed office between elections.

Of the 7 that did, only 3 were re-elected. Maybe because they were unelectable in the first place :-)

Chile, Switzerland and Iceland all have free trade agreements with China. The EU doesn't.

It's not in the EU's interest to have a free trade agreement with China; the US doesn't have one either.

China pursues a mercantilist strategy in many respects. Take steel, for example: unrestricted trade with China would wreak havoc on Germany's steel industry, with potential knock-on effects further along the value chain - and there's no guarantee that China would keep steel prices low after predatory pricing.

Are you saying "any trade deal is better than no trade deal?". Just because the EU doesn't have one with China doesn't mean Switzerland's deal is better.... than a deal that doesn't exist.

No, I was just giving some examples. If you follow your logic the UK needn't worry about not having a trade deal with the EU.

> If you follow your logic the UK needn't worry about not having a trade deal with the EU.

No, that does not follow.

What was the combined value of their trade into China in 2015?