I just tried using Math:Lerp for the first time and get the error:
attempt to call method 'Lerp' (a nil value)
This is how I am calling it, I have also tried Math.Lerp and just Lerp, they don't work either.
local R = Math:Lerp(self.DayAmbient.x,self.NightAmbient.x,Intense)
As as a test I did I
for k,v in pairs(Math) do print(k,v) end
and I couldn't see Lerp anywhere in the output
I understand how Lerp works and can write the function myself to get around this, I just didn't know if the documentation is wrong or I am having some kind of bug or what.