math.log() - Lua | Version 5.4 Docs

The math.max function returns the argument with the maximum value among the provided numbers.

Syntax

math.max(x, ...)

Parameters

x: A number.
...: Zero or more numbers. The function will return the largest value among these parameters.

Return value

The largest of the given numbers. If any parameter is NaN, it returns NaN. If no parameters are provided, it returns -inf.

Description

math.max compares all the provided arguments using the lua < operator to determine which one has the maximum value. It is important to note that if any of the arguments are NaN (not a number), the function will return NaN.

Examples

Using `math.max()`

print(math.max(10, 20))            -- 20
print(math.max(-10, -20))          -- -10
print(math.max(-10, 20))            -- 20
print(math.max())                   -- -inf
print(math.max(10, 20, 30, 5))     -- 30
print(math.max(5, math.huge))      -- Infinity
print(math.max(1/0, -1/0))         -- Infinity
print(math.max(10, math.nan))      -- NaN

Getting the maximum element of a table

You can use a loop to find the maximum value in a numeric table:

function getMaxOfTable(numTable)
    local maxVal = -math.huge
    for _, v in ipairs(numTable) do
        maxVal = math.max(maxVal, v)
    end
    return maxVal
end

local numbers = {1, 2, 3, 4, 5}
print(getMaxOfTable(numbers))      -- 5