---[[ Modules ]]---
-- Include code other files
-- 可以加載需要使用的庫

---[[ Method 1 ]]---
-- require("myMath")
-- myMath.function(a,b)

---[[ Method 2 ]]---
-- local math = require("myMath")
-- math.function(a,b)

---[[ Method 3 ]]---
-- require("myMath")
-- local mathFunction = myMath.function 
-- mathFunction(a,b)




---[[ Math ]]---
-- The math class has a number of functions for dealing with numbers.

--abs (absolute value)
print("----Absolute----")
local x = -10
print(math.abs(x)) 
local a = 99
print(math.abs(a)) 

--sqrt (Square root of a number)
print("----Square root----")
print(math.sqrt(100)) 




--ceil (round up decimal value) 無條件進位
local x = 1.333
print(math.ceil(x)) --result: 2

--floor (round down decimal value) 無條件捨去
local x = 1.2
print(math.floor(x)) --result: 1


print("----Pi----")
--pi (constant value of pi)
print("Pi is " .. math.pi) --3.1415926535898

print("----Convert value to degrees----")
--deg (Convert value from radians to degrees)
print(math.deg(math.pi)) -- result: 180
print(math.deg(math.pi/2)) -- result: 180

print("----Convert value to radians----")
--rad (Convert value from degrees to radians) #弧度
print(math.rad(180)) --result: 3.1415926535898



print("----Random number----")
--random (random number generation) random value between 0 tand 1
print(math.random())

--random integer value from 1 to 100 (both inclusive)
print(math.random(100)) 

--random integer value from 20 to 100 (both inclusive)
print(math.random(20, 100))