Investigator formulae addition

[nogoodscallywag]

In RAW for Alchemist, "An alchemist can study a wizard's spellbook to learn any formula that is equivalent to a spell the spellbook contains."

Does this extend to the investigator as well? If so, are the rules on cost the same as a wizard copying?

[Deadmanwalking]

Given that Investigator specifically says it can do this and that doing so works the same, yes, they can do that and at the same cost.