Unclear things in the manual of the RQ kernel

[pilchat]

Hi,

I'm trying to use the RQ kernel. First of all, in its help file I don't understand if I should put alpha or log_alpha as an input parameter. If the latter, is the logarithm natural or base 10?

Second of all, I checked R&W, and their formula 4.19 is not exactly the same as the one in george. Is it an issue, or are they mathematically equivalent?

Thanks in advance

Cheers