SPALNUM - Editorial

Here, the base of log is not 2, not 10. That’s why.

Can Anyone can explain the following lines, how it works? I’m not getting it. Examples might be used to better explaination. Thanks In Advance.

query [A,B][A,B] equals F**−F[A−1]

What’s the name of the technique, you have mentioned? So, that we know more about it using that keyword?