1.0Harry Dolehttps://harrydole.com/wpHarry Dolehttps://harrydole.com/wp/author/hdole/Catecon: Factorial - Harry Dolerich600338<blockquote class="wp-embedded-content" data-secret="DhF7Gv9CZy"><a href="https://harrydole.com/wp/2018/07/05/catecon-factorial/">Catecon: Factorial</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://harrydole.com/wp/2018/07/05/catecon-factorial/embed/#?secret=DhF7Gv9CZy" width="600" height="338" title="“Catecon: Factorial” — Harry Dole" data-secret="DhF7Gv9CZy" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript">
/* <![CDATA[ */
/*! This file is auto-generated */
!function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document);
//# sourceURL=https://harrydole.com/wp/wp-includes/js/wp-embed.min.js
/* ]]> */
</script>
https://harrydole.com/wp/wp-content/uploads/2018/07/factorial.png34401934Prior video Catecon: Introduction. My first machine to play on beyond some sticks to rub together (a slide rule) was an Olivetti Programma 101 with magnetic cards. My first program, well, one with loops, was to compute factorials. Let’s do that here, with recursion. Given a natural number n, the factorial of n is n… Continue reading →