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Evaluating integral $F(r_2) = \frac{1}{r_2^n} \int_0^{r_2} r_1^n f(r_1)\ \mathrm{d}r_1$ without growing instability
I have the following expression to be numerically integrated in a vector-based library (e.g. numpy, MATLAB, etc),
$$
F(r_2) = \frac{1}{r_2^n} \int_0^{r_2} r_1^n f(r_1)\ \mathrm{d}r_1,
$$
where $n$ is ...
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