Is square missing in price_to_tick function?

[nikoulai]

In the tick calculations the formula i = log_√1.0001(p(i)) but in the implementation of price_to_tick, square root is not present. Is it missing or I miss something?

[Jeiwan]

No need to take the square root in this case since the function takes a price, not the square root of a price.

The formula is:
$$i = log_{\sqrt{1.0001}} \sqrt{P(i)}$$

It's derived from:
$$\sqrt{P(i)}=1.0001^{\frac{i}{2}}$$

If you cancel out the square root on the both sides you'll get the formula from the implementation.