math.min

math.min Function
Syntax math.min( numbers... : number )
Returns	number
API	math
Source	Lua (source)

Return the smallest of all the numbers given.

ExamplePrint the minimum value of user input
Read as many lines as the user inputs, and return the smallest value that they wrote.
Code	local max = math.huge while true do local l = read() if tonumber(l) then max = math.min(max, tonumber(l)) else break end end print(max)
Output	The line the user wrote with the smallest value, or inf if they wrote no lines.