This is a basic math problem, but it’s got me stumped. What algorithm would I use to select 5 random numbers, with the constraint that they need to average to 4000. 5 is just an example, it could be ...

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A pair of researchers have found a more efficient way to multiply grids of numbers, beating a record set just a week ago by the artificial intelligence firm DeepMind. The company revealed on 5 October ...