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<?xml-stylesheet type="text/xsl" href="https://community.appian.com/cfs-file/__key/system/syndication/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/"><channel><title>Not getting Combin Function</title><link>https://community.appian.com/discussions/f/general/24366/not-getting-combin-function</link><description>can somebody explain this 
 Combin(64,2) returns 2016</description><dc:language>en-US</dc:language><generator>Telligent Community 12</generator><item><title>RE: Not getting Combin Function</title><link>https://community.appian.com/thread/94047?ContentTypeID=1</link><pubDate>Fri, 22 Apr 2022 18:23:11 GMT</pubDate><guid isPermaLink="false">d3a83456-d57b-489c-a84c-4e8267bb592a:8daaec34-1f22-422c-9a6b-926ebb828d34</guid><dc:creator>davel001150</dc:creator><description>&lt;p&gt;It&amp;#39;s a statistical function.&amp;nbsp; What you input would be read by mathematician as &amp;quot;64 choose 2&amp;quot;, or how many unique ways are there to choose 2 items from a list of 64, where the order&amp;nbsp;doesn&amp;#39;t matter, so AB and BA are the same thing.&lt;/p&gt;
&lt;p&gt;A simple example is 5 choose 2, which the answer is 10.&amp;nbsp; Let&amp;#39;s just do letters:&lt;/p&gt;
&lt;p&gt;AB, AC, AD, AE, BC, BD, BE, CD, CE, DE&lt;/p&gt;
&lt;p&gt;A with 4 possible second letters, B with 3 remaining second letters, then C with 2 more, D with&amp;nbsp;only one possibility that wasn&amp;#39;t earlier in the results.&lt;/p&gt;
&lt;p&gt;There&amp;#39;s a fun statistical calculation for determining the value that involves factorials, but you don&amp;#39;t have to do that because Appian does it for you.&amp;nbsp; If you care about the order, like if you&amp;#39;re trying to find the total number of possible combinations to a safe, that&amp;#39;s actually called a &amp;quot;permutation&amp;quot;.&amp;nbsp; Appian has a function for that too.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Not getting Combin Function</title><link>https://community.appian.com/thread/94030?ContentTypeID=1</link><pubDate>Fri, 22 Apr 2022 14:49:11 GMT</pubDate><guid isPermaLink="false">d3a83456-d57b-489c-a84c-4e8267bb592a:7511781b-1a16-44a2-8465-c37989ecf3eb</guid><dc:creator>Stefan Helzle</dc:creator><description>&lt;p&gt;&lt;a href="https://docs.appian.com/suite/help/22.1/fnc_mathematical_combin.html"&gt;docs.appian.com/.../fnc_mathematical_combin.html&lt;/a&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>