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If signs aren't a big deal, use the generalized mean formula

$$\left(\frac{1}{n}\sum x_i^n\right)^{1/nx_i^k\right)^{1/k}$$

for $n\to k\to -\infty$.

1

If signs aren't a big deal, use the generalized mean formula

$$\left(\frac{1}{n}\sum x_i^n\right)^{1/n}$$

for $n\to -\infty$.