 -- standard
local function Calculate(firstNumber, secondNumber, Type, Arrondir)
  if Type == "Addition" then
    local addition = (firstNumber + secondNumber)
    if Arrondir then
      addition = math.floor(addition + 0.5)
      if addition < 0.5 then
        math.floor(addition)
      else
        math.ceil(addition)
      end
    end
    print("Result : ".. addition)
  elseif Type == "Soustraction" then
    local soustraction = (firstNumber - secondNumber)
    if Arrondir then
      soustraction = math.floor(soustraction + 0.5)
      if soustraction < 0.5 then
        math.floor(soustraction)
      else
        math.ceil(soustraction)
      end
    end
    print("Result : ".. soustraction)
  elseif Type == "Multiplication" then
    local multiplication = (firstNumber * secondNumber)
    if Arrondir then
      multiplication = math.floor(multiplication + 0.5)
      if multiplication < 0.5 then
        math.floor(multiplication)
      else
        math.ceil(multiplication)
      end
    end
    print("Result : ".. multiplication)
  elseif Type == "Division" then
    local division = (firstNumber / secondNumber)
    if Arrondir then
      division = math.floor(division + 0.5)
      if division < 0.5 then
        math.floor(division)
      else
        math.ceil(division)
      end
    end
    print("Result : ".. division)
  end
end
-- scientific
local function ScientificTenPower(number)
  local startTime = os.clock()
  print("Scientific 10 power loading. More than 7 zeros can take up a lot of performance depending on your GPU and compiler. If nothing happens when you run it, please wait.")
  local originalLength = number
  local removedZeros = 0
  local sci = ""
  for i = 1, originalLength do
    local char = string.sub(number, i, i)
    if char ~= "0" then
      sci = sci .. char
    else
      removedZeros = removedZeros + 1
    end
  end
  local firstNbr = string.sub(sci, 1, 1)
  sci = sci.. " x 10^".. tostring(removedZeros)
  print("Result : " .. sci)
  local endTime = os.clock() - startTime
  local deltaTime = endTime - startTime
  print("Program completed in "..tostring(deltaTime).. " seconds.")
end


Calculate(3+3, 2, "Division", true)

ScientificTenPower(10000000) 
-- Plus de 7 zéros peut prendre beaucoup de performances en fonction de votre GPU et du compiler. Si lorsque vous exécutez il ne se passe rien, patientez.

created 2 years ago

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About Lua

Lua is a light weight embeddable scripting language which is built on top of C. It is used in almost all kind of applications like games, web applications, mobile applications, image processing etc. It's a very powerful, fast, easy to learn, open-source scripting language.

Syntax help

Variables

By default all the variables declared are global variables
If the variables are explicitly mentioned as local then they are local variables.
Lua is a dynamically typed language and hence only the values will have types not the variables.

Examples

-- global variables
a = 10

-- local variables

local x = 30

Value Type	Description
number	Represents numbers
string	Represents text
nil	Differentiates values whether it has data or not
boolean	Value can be either true or false
function	Represents a sub-routine
userdata	Represents arbitary C data
thread	Represents independent threads of execution.
table	Can hold any value except nil

Loops

1. While:

While is also used to iterate a set of statements based on a condition. Usually while is preferred when number of iterations are not known in advance.

while(condition)
do
--code
end

2. Repeat-Until:

Repeat-Until is also used to iterate a set of statements based on a condition. It is very similar to Do-While, it is mostly used when you need to execute the statements atleast once.

repeat
   --code
until( condition )

3. For:

For loop is used to iterate a set of statements based on a condition.

for init,max/min value, increment
do
   --code
end

Functions

Function is a sub-routine which contains set of statements. Usually functions are written when multiple calls are required to same set of statements which increase re-usuability and modularity.

optional_function_scope function function_name( argument1, argument2, argument3........, argumentn)
--code
return params with comma seperated
end