<p>I migrated it.  I agree it was a borderline case for migration, but it was a very clear case for closure for multiple reasons (which I am sure most of you can readily enumerate: self study, duplicated, image-only, off-topic, <em>etc.</em>).  Because the question explicitly is &quot;somebody show me how to do the calculation&quot; and it had received an answer in code, I felt the more constructive solution was migration rather than closure.</p>
