Numeric error propagation: Difference between revisions

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puts ((x1 - x2) ** 2 + (y1 - y2) ** 2).sqrt</lang>
puts ((x1 - x2) ** 2 + (y1 - y2) ** 2).sqrt</lang>
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<pre>111.803398874989 ± 2.48716706314634</pre>
<pre>111.803398874989 ± 2.48716706314634</pre>