<div dir="ltr"><div><br></div><div>R = recovered = people who can not infect others anymore...this includes the dead people... (or not?)<br></div><div><br></div><div>there are some nice introducton videos at YouTube about this....even showing the mentioned model...</div><div><br></div><div>numberphile: <a href="https://www.youtube.com/watch?v=k6nLfCbAzgo">https://www.youtube.com/watch?v=k6nLfCbAzgo</a></div><div>3brown1blue: <a href="https://www.youtube.com/watch?v=gxAaO2rsdIs">https://www.youtube.com/watch?v=gxAaO2rsdIs</a></div><div><br></div><div>Best regards,</div><div>Philipp<br></div><div><br> </div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">Am Mo., 30. März 2020 um 18:57 Uhr schrieb Heinz Nabielek <<a href="mailto:heinznabielek@me.com">heinznabielek@me.com</a>>:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">It is generally assumed that 1% of the infected will die. But that would not be part of the modelling, depends mainly on local health services.<br>
<br>
Heinz<br>
<br>
> On 30.03.2020, at 16:12, Vesela Pasheva <<a href="mailto:vvp@tu-sofia.bg" target="_blank">vvp@tu-sofia.bg</a>> wrote:<br>
> <br>
> Hello colleagues,<br>
> <br>
> I would like to know whether the variable D of dead persons could be included in the model considered. Up till now the model considers the variables S - susceptible, I - infected and R - recovered. Where do the Dead persons D go.<br>
> Of course i such case the system will be of four differential equations.<br>
> <br>
> Best regards<br>
> <br>
> Vesela<br>
> <br>
> На 30-03-2020 15:38, Heinz Nabielek написа:<br>
>>> On 30.03.2020, at 08:13, Stéphane Mottelet<br>
>>> <<a href="mailto:stephane.mottelet@utc.fr" target="_blank">stephane.mottelet@utc.fr</a>> wrote:<br>
>>> Hello Heinz,<br>
>>> Here is an interactive version (made for my children last week...) :<br>
>>> // Confinement COVID-19 !<br>
>>> // Stephane MOTTELET, UTC<br>
>>> // Tue Mar 24 08:55:03 CET 2020....<br>
>> Great many thanks:<br>
>> o The SIR model is great and can be readily understood.<br>
>> o Scilab is great: one line of code where big EXCEL sheet produced a<br>
>> mess.<br>
>> o Scilab friends and colleagues are great: instantaneous and real<br>
>> help.<br>
>> If the modelling is anywhere near to right, it will soon be over in<br>
>> Austria (cyan circles are recorded infections). But this is likely<br>
>> over-optimistic.....<br>
>> Heinz<br>
>> ______________<br>
>> Dr Heinz Nabielek<br>
>> Schüttelstrasse 77A/11<br>
>> A-1020 Wien, Österreich<br>
>> Tel +43 1 276 56 13<br>
>> cell +43 677 616 349 22<br>
>> <a href="mailto:heinznabielek@me.com" target="_blank">heinznabielek@me.com</a><br>
>> _______________________________________________<br>
>> users mailing list<br>
>> <a href="mailto:users@lists.scilab.org" target="_blank">users@lists.scilab.org</a><br>
>> <a href="http://lists.scilab.org/mailman/listinfo/users" rel="noreferrer" target="_blank">http://lists.scilab.org/mailman/listinfo/users</a><br>
> _______________________________________________<br>
> users mailing list<br>
> <a href="mailto:users@lists.scilab.org" target="_blank">users@lists.scilab.org</a><br>
> <a href="http://lists.scilab.org/mailman/listinfo/users" rel="noreferrer" target="_blank">http://lists.scilab.org/mailman/listinfo/users</a><br>
<br>
_______________________________________________<br>
users mailing list<br>
<a href="mailto:users@lists.scilab.org" target="_blank">users@lists.scilab.org</a><br>
<a href="http://lists.scilab.org/mailman/listinfo/users" rel="noreferrer" target="_blank">http://lists.scilab.org/mailman/listinfo/users</a><br>
</blockquote></div>