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@@ -151,6 +151,12 @@ Functions</h2></td></tr>
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<tr class="memdesc:af05567415a9ea36c254b54e3d5a2152a"><td class="mdescLeft">&#160;</td><td class="mdescRight">Function to calculate the sum of all the proper divisor of an integer. <br /></td></tr>
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<h2 class="memtitle"><span class="permalink"><a href="#a8e6eede206201db0d1dbb618fa969bec">&#9670;&#160;</a></span>are_amicable()</h2>
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<td class="memname">bool math::are_amicable </td>
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<p>Function to check whether the pair is amicable or not. </p>
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<dl class="section return"><dt>Returns</dt><dd><code>true</code> if the pair is amicable </dd>
<dd>
<code>false</code> if the pair is not amicable </dd></dl>
<div class="fragment"><div class="line"><span class="lineno"> 58</span> {</div>
<div class="line"><span class="lineno"> 59</span> <span class="keywordflow">return</span> (<a class="code hl_function" href="../../dd/d47/namespacemath.html#af05567415a9ea36c254b54e3d5a2152a">sum_of_divisor</a>(x) == y) &amp;&amp; (<a class="code hl_function" href="../../dd/d47/namespacemath.html#af05567415a9ea36c254b54e3d5a2152a">sum_of_divisor</a>(y) == x);</div>
<div class="line"><span class="lineno"> 60</span>}</div>
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<h2 class="memtitle"><span class="permalink"><a href="#af05567415a9ea36c254b54e3d5a2152a">&#9670;&#160;</a></span>sum_of_divisor()</h2>
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<p>Function to calculate the sum of all the proper divisor of an integer. </p>
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<div class="fragment"><div class="line"><span class="lineno"> 31</span> {</div>
<div class="line"><span class="lineno"> 32</span> <span class="comment">// Variable to store the sum of all proper divisors.</span></div>
<div class="line"><span class="lineno"> 33</span> <span class="keywordtype">int</span> sum = 1;</div>
<div class="line"><span class="lineno"> 34</span> <span class="comment">// Below loop condition helps to reduce Time complexity by a factor of</span></div>
<div class="line"><span class="lineno"> 35</span> <span class="comment">// square root of the number.</span></div>
<div class="line"><span class="lineno"> 36</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> div = 2; div * div &lt;= num; ++div) {</div>
<div class="line"><span class="lineno"> 37</span> <span class="comment">// Check &#39;div&#39; is divisor of &#39;num&#39;.</span></div>
<div class="line"><span class="lineno"> 38</span> <span class="keywordflow">if</span> (num % div == 0) {</div>
<div class="line"><span class="lineno"> 39</span> <span class="comment">// If both divisor are same, add once to &#39;sum&#39;</span></div>
<div class="line"><span class="lineno"> 40</span> <span class="keywordflow">if</span> (div == (num / div)) {</div>
<div class="line"><span class="lineno"> 41</span> sum += div;</div>
<div class="line"><span class="lineno"> 42</span> } <span class="keywordflow">else</span> {</div>
<div class="line"><span class="lineno"> 43</span> <span class="comment">// If both divisor are not the same, add both to &#39;sum&#39;.</span></div>
<div class="line"><span class="lineno"> 44</span> sum += (div + (num / div));</div>
<div class="line"><span class="lineno"> 45</span> }</div>
<div class="line"><span class="lineno"> 46</span> }</div>
<div class="line"><span class="lineno"> 47</span> }</div>
<div class="line"><span class="lineno"> 48</span> <span class="keywordflow">return</span> <a class="code hl_function" href="../../d8/d77/namespacemachine__learning.html#a6f1c98c016ad34ff3d9f39372161bd35">sum</a>;</div>
<div class="line"><span class="lineno"> 49</span>}</div>
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<h2 class="memtitle"><span class="permalink"><a href="#a50936ee98f4d40f17823befc65a32aec">&#9670;&#160;</a></span>test_eval()</h2>

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