Project Euler Forum

Posted: **Fri May 19, 2017 3:32 pm**

tommyjcarpenter wrote: Fri May 19, 2017 3:21 pm On page one of this thread, Robert Gerbicz says

"No, read the wikipedia's article! For this problem, because the answer will be in [1000,10000) the submitted answer should be in the form: abcd.efghij
(and use rounding to get the last digit)."

On page two of this thread, daniel.is.fischer says

"Ten significant digits is abc.defghij.
I'll take a look."

Which one is it?

Implied in Daniel's answer is "If the answer is in the interval [100, 1000[, (but it is not), ten significant digits is abc.defghij."
Robert's answer is more specific.

Posted: **Mon Jun 14, 2021 4:03 pm**

The answer is of the form xxxx.xxxxxx . I think the difference between "significant figures" and "digits after the decimal point" should be made clearer, since that difference made me waste half an hour with stuff like Monte Carlo simulations and Python's fractions library to deal with what appeared to be a precision issue.

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Problem 227

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