Abstract: In winter 2020, the Covid-19 emergency explodes. From the earliest days, the Italian online magazine MaddMaths!, devoted to teaching and popularizing mathematics, decides to focus its attention on the mathematical aspects of the Sars-CoV-2 epidemic. The editorial choice is not to propose data and graphics but to publish articles for reflection, analysis, and dissemination on mathematical models as interpretative and political decision tools. Understanding the epidemic in order to combat it, is a scientific citizenship issue: citizens must have ...
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