Math API

function getAverage(table)
local h
local r
h = 0
for i=1, #table do
r = tonumber(table[i])
if r == nil then
error("Table had non-numerical index")
return nil
end
h = h + r
end
h = h / #table
return h
end
function getFactors(num)
local factors = {}
local lol = tonumber(num)
if lol == nil then
error("Number expected: got "..type(num))
return false
end
num = lol
for i=1, num do
if num % i == 0 then
table.insert(factors, i)
end
end
return factors
end