electric.lua

--[[--
Copyright (c) 2020 Ramdhan Firmansyah
File              : electric.lua
Author            : Cvar1984 <[email protected]>
Date              : 16.12.2020
Last Modified Date: 16.12.2020
Last Modified By  : Cvar1984 <[email protected]>
--]]--

local Electric = {};

function Electric.getCurrent(v, r, p)
    if p ~= nil then
        return p / v;
    end
    return v / r;
end

function Electric.getPower(i, v)
    return i * v;
end

function Electric.getVoltage(i, r)
    return i * r;
end
function Electric.getResistance(v, i)
    return v / i;
end

if arg[1] == nil then
    print(string.format('example: ./%s %d %d', arg[0], 5, 2));
    os.exit('1');
end
local volt = arg[1];
local ohm = arg[2];
local amp = Electric.getCurrent(volt, ohm);
local watt = Electric.getPower(amp, volt);

print(string.format([[
volt: %s
ohm: %s
ampere: %s
watt: %s
]], volt, ohm, amp, watt));