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      If someone is interested in a numerical approach to this take a look at section 3.1 of my Bachelor thesis. It is possible to extend the real numbers with only one infinity (instead of +infinity and -infinity), allowing to divide by zero without hitting any problems, except 0/0 and other cases.

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        Thank you. It looks like a good thesis.

        I’m also interested about exact real arithmetic, and I suppose someone who has made a thesis about unum arithmetic probably does too. I show this thing that just recently happened to stumble upon when searching: Exact Real Arithmetic using Möbius Transformations by Peter John Potts