Researchers have finally solved the cryptic deathbed puzzle renowned Indian mathematician Srinivasa Ramanujan claimed came to him in dreams.

While on his death-bed in 1920, Ramanujan wrote a letter to his mentor, English mathematician G. H. Hardy, outlining several new mathematical functions never before heard of, along with a hunch about how they worked.

Decades years later, researchers say they’ve proved he was right – and that the formula could explain the behaviour of black holes.

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what is the actual “Deathbed” problem

I think it’s something to do with theta functions, which I definitely do not know.