1.0Étienne Ghyshttps://perso.ens-lyon.fr/ghysghyshttps://perso.ens-lyon.fr/ghys/author/ghys/Epidemics: flattening the exponentials - Étienne Ghysrich600338<blockquote class="wp-embedded-content" data-secret="wVaxp3kS2G"><a href="https://perso.ens-lyon.fr/ghys/2020/03/23/epidemics-flattening-the-exponentials/">Epidemics: flattening the exponentials</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://perso.ens-lyon.fr/ghys/2020/03/23/epidemics-flattening-the-exponentials/embed/#?secret=wVaxp3kS2G" width="600" height="338" title="« Epidemics: flattening the exponentials » — Étienne Ghys" data-secret="wVaxp3kS2G" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script>
/*! 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);
</script>
https://www.lemonde.fr/sciences/article/2020/03/25/epidemies-aplatir-les-exponentielles_6034339_1650684.html Carte blanche. These last days will have at least allowed the French to understand in their flesh what an exponential is. We have all become aware that the powers of 2 grow really fast: 1, 2, 4, 8, 16, 32, 64, etc., to exceed one billion in just 30 steps. What is less well … Continuer la lecture de →