From: julio@diegidio.name   
      
   On 28/07/2025 13:44, Julio Di Egidio wrote:   
      
   > Then, for a mathematics that does that, my guess is to   
   > "normalize" the sum, otherwise the self-interference of   
   > the periodic waves would simply diverge.  So I end up   
   > with something like this:   
   >   
   > ```   
   > for 0 <= x < T,   
   >    F(x) = lim_{n->oo} [ Sum_{i=0}^n f(x + n*T) / (n+1) ]   
   > ```   
      
   Sorry, should of course read ... f(x + i*T) / (i+1) ...   
      
   -Julio   
      
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