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take the first non-zero number and put a decimal after it. Follow that with however many digits you need. Follow that with 3. Now, if the number is less than one, put - if it's more than one put +. Follow that with a number, the number is the number of places the decimal moved from its original place.

234 -> 2.34e+2 The decimal moved 2 places to the right, so it's a + and it's 2

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13y ago

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