<p><strong>diff</strong> program output N = 100 with this <a href="iofile.php?test=<?=$SelectedTest;?>&amp;file=output">output file</a> to check your program is correct before contributing.
</p>

<p>Each program should calculate the spectral norm of an infinite matrix A, 
with entries a<sub>11</sub>=1, a<sub>12</sub>=1/2, a<sub>21</sub>=1/3, 
a<sub>13</sub>=1/4, a<sub>22</sub>=1/5, a<sub>31</sub>=1/6, <em>etc</em></p>

<p>Each program <strong>must</strong> implement 4 separate functions / procedures / methods like the <a href="benchmark.php?test=spectralnorm&amp;lang=csharp&amp;sort=<?=$Sort;?>">C# program</a>.</p>

<p>For more information see challenge #3 in Eric W. Weisstein, "Hundred-Dollar, Hundred-Digit Challenge Problems" and "Spectral Norm"
<p>From <a href="http://mathworld.wolfram.com"><i>MathWorld</i></a>--A Wolfram Web Resource.<br />
<a href="http://mathworld.wolfram.com/Hundred-DollarHundred-DigitChallengeProblems.html">http://mathworld.wolfram.com/Hundred-DollarHundred-DigitChallengeProblems.html</a><br />
<a href="http://mathworld.wolfram.com/SpectralNorm.html">http://mathworld.wolfram.com/SpectralNorm.html</a>
</p>

<p>Thanks to Sebastien Loisel for this benchmark.</p>
