--# a function to find us peripherals connected to a computer, either locally or remotely
local function findPeripheral(_type, gatherAll, callback)
  gatherAll = gatherAll == true --# we want to make sure that its a boolean that's passed, if anything other than a boolean is supplied, false will be assumed
  callback = type(callback) == "function" and callback or function() return true end --# if no callback function is supplied, make one, the callback allows you to specify if its what you actually want, a better example can be found when I use it
  local t = {}
  for _, name in pairs(peripheral.getNames()) do --# loop all the connected peripherals
    if peripheral.getType(name) == _type then --# check if it's what's wanted
      local periph = peripheral.wrap(name)
      if callback(periph) then
        table.insert(t, periph) --# insert it into the table
        if not gatherAll then --# if you didn't want all, meaning only wanted one, exit the loop
          break
        end
      end
    end
  end
  return unpack(t) --# return each of the elements in a table individually, you can gather any you wish from this
end

local mfsuLookup = findPeripheral("mfsu", true)
local monitor = findPeripheral("monitor", false, function(p) return p.isColor() end) --# our callback here makes sure its an advanced monitor
term.redirect(monitor) --# send the terminal calls to the monitor

term.clear() --# see, now we can use this instead of calling on the monitor

--# a better round function. num is the number to round. idp is the number of decimal places to round to
local function round(num, idp)
  local mult = 10^(idp or 0)
  if num >= 0 then
    return math.floor(num * mult + 0.5 ) / mult
  end
  return math.ceil(num * mult - 0.5) / mult
end