[kaffe] Can you tell me the arithmetic's theory

[Ito Kazumitsu]

Hi,

>    I don't know what does the arithmetic say!
>    The result from a is 1000, then the result from b is 6.

I am not sure, but isn't this calculating the geometrical average
of the given five numbers: Math.pow(x1 * x2 * x3 * x4 * x5, 0.2) ?