Sum of a series: Difference between revisions
PascalABC.NET
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Whereas pi^2/6 is: 1.64493407
</pre>
=={{header|PascalABC.NET}}==
<syntaxhighlight lang="delphi">
##
(1..1000).Sum(k -> 1/k**2).Println
</syntaxhighlight>
{{out}}
<pre>
1.64393456668156
</pre>
=={{header|Perl}}==
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