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      <title>Atelier Maths Premiere by Maths Ozenne</title>
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      <description>open your mind</description>
      <language>en-us</language>
      <pubDate>2018-10-10 10:21:05 UTC</pubDate>
      <lastBuildDate>2023-01-24 11:41:23 UTC</lastBuildDate>
      <webMaster>hello@padlet.com</webMaster>
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         <title>Semaine des maths</title>
         <author>mathsozenne</author>
         <link>https://padlet.com/mathsozenne/atelierMaths/wish/291155199</link>
         <description><![CDATA[]]></description>
         <enclosure url="http://eduscol.education.fr/maths/actualites/actualites/article/un-evenement-semaine-des-maths-2019.html" />
         <pubDate>2018-10-10 10:25:48 UTC</pubDate>
         <guid>https://padlet.com/mathsozenne/atelierMaths/wish/291155199</guid>
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      <item>
         <title>Planning</title>
         <author>mathsozenne</author>
         <link>https://padlet.com/mathsozenne/atelierMaths/wish/291155768</link>
         <description><![CDATA[<div>cliquez pour compléter</div>]]></description>
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         <pubDate>2018-10-10 10:28:08 UTC</pubDate>
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         <title></title>
         <author>mathsozenne</author>
         <link>https://padlet.com/mathsozenne/atelierMaths/wish/291158795</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://disciplines.ac-toulouse.fr/mathematiques/sites/mathematiques/files/la_vie_des_mathematiques/olympiades/o2018/deux_mille_dix_huit_a2.pdf" />
         <pubDate>2018-10-10 10:36:07 UTC</pubDate>
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         <title></title>
         <author>mathsozenne</author>
         <link>https://padlet.com/mathsozenne/atelierMaths/wish/291202433</link>
         <description><![CDATA[]]></description>
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         <pubDate>2018-10-10 12:46:46 UTC</pubDate>
         <guid>https://padlet.com/mathsozenne/atelierMaths/wish/291202433</guid>
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      <item>
         <title>Algorithme pour dépiler</title>
         <author>mathsozenne</author>
         <link>https://padlet.com/mathsozenne/atelierMaths/wish/312611274</link>
         <description><![CDATA[<pre>def auto2(a,b):
    if b&lt;a:
       a,b = b,a
       print("a: ",a," ; b: ",b)
        
    if a&lt;=b:
        while b&gt;2*a:
            a = 2*a
            print("a=2a=",a,sep="")

        print("O1: a=a-",(2*a-b),"=",a-(2*a-b)," ; b=b-",(2*a-b),"=",b-(2*a-b),sep="")    
        a,b = a-(2*a-b), b-(2*a-b) #O1
        a = a*2 # O2
        print("O2: a=a*2=",a,sep="")
        a,b = a-a, b-a # O1
        print("O1: a=",a," ; b=",b,sep="")

    return a,b

# Fait intervenir des nombres négatifs, qui ne marcherait pas en situation réelle       
def auto3(a,b):
    if b&lt;a:
       a,b = b,a
       print("a: ",a," ; b: ",b)
        
    if a&lt;=b:
        while b&gt;3*a:
            a = 3*a
            print("a=3a=",a,sep="")

        print("O1: a=a-",(3*a-b),"=",a-(3*a-b)," ; b=b-",(3*a-b),"=",b-(3*a-b),sep="")    
        a,b = a-(3*a-b)/2, b-(3*a-b)/2 #O1
        a = a*3 # O2
        print("O2: a=a*3=",a,sep="")
        a,b = a-a, b-a # O1
        print("O1: a=",a," ; b=",b,sep="")</pre><div><br></div>]]></description>
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         <pubDate>2018-12-09 10:36:06 UTC</pubDate>
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         <title></title>
         <author>mathsozenne</author>
         <link>https://padlet.com/mathsozenne/atelierMaths/wish/313288573</link>
         <description><![CDATA[]]></description>
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         <pubDate>2018-12-11 08:20:10 UTC</pubDate>
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         <title></title>
         <author>mathsozenne</author>
         <link>https://padlet.com/mathsozenne/atelierMaths/wish/313289082</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://www.animath.fr/actions/clubs/" />
         <pubDate>2018-12-11 08:22:22 UTC</pubDate>
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      <item>
         <title>Sujets Olympiades Internationales 2018</title>
         <author>mathsozenne</author>
         <link>https://padlet.com/mathsozenne/atelierMaths/wish/313289783</link>
         <description><![CDATA[]]></description>
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         <pubDate>2018-12-11 08:24:50 UTC</pubDate>
         <guid>https://padlet.com/mathsozenne/atelierMaths/wish/313289783</guid>
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         <title>Sujet 2016 Métropole-Europe</title>
         <author>mathsozenne</author>
         <link>https://padlet.com/mathsozenne/atelierMaths/wish/313290489</link>
         <description><![CDATA[]]></description>
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         <title>Archives sujets</title>
         <author>mathsozenne</author>
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         <description><![CDATA[]]></description>
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         <pubDate>2018-12-11 08:28:25 UTC</pubDate>
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         <title></title>
         <author>mathsozenne</author>
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         <pubDate>2019-01-12 10:04:17 UTC</pubDate>
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