It would mean their error would be less than it'd look like 1.2\*sqrt(2). Read t... | Hacker News

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psychphysic on Dec 29, 2022 | parent | context | favorite | on: Stone tablet shows Babylonians able to approximate...

It would mean their error would be less than it'd look like 1.2*sqrt(2).

Read the thread he explains it very well. The percentage is 1 - (absolute error divided by the true value) * 100

addaon on Dec 29, 2022 [–]

Note that the parent asked for 20% accurate, not 20% error (80% accurate).

psychphysic on Dec 29, 2022 | [–]

Accuracy is generally defined as (mean - true)/true

But it's a common note that that's really the inaccuracy.

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