it means e to the i pi plus one equals zero.     ramanujan. perhaps the weirdest mathematician ever. he didn't go to school for math but his friend bought him a huge math textbook and he was autistic enough to read the whole thing until he figured out what every page meant he committed many hours to it. then he started dreaming about math and wrote it down without proof and a lot of his work actually solved previously unsolved problems in math. and then he died prematurely very young unexpectedly.
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