Arithmetic function: Difference between revisions

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===Logarithmic derivative===
<math>\operatorname{ld}(n)=\frac{D(n)}{n} = \sum_{\stackrel{p\mid n}{p\text{ prime}}} \frac {v_p(xn)} {p}</math>, where <math>D(n)</math> is the arithmetic derivative.
 
==Neither multiplicative nor additive==