Not modulus operator / or why while not % not working

[PhantomGame_Youtube (Ze_InSoRiTy)]

So this is just quick question. What is not modulus operator, like ~% or smth, cuz not seems to give error, here this code give error:

while not math.round(formulaLevel) % requiredLevel do
			formulaLevel -= 1
end

Code gives this error:

[HugeCoolboy2007 (omega)]

Use parentheses

while not (math.round(formulaLevel) % requiredLevel) do
	formulaLevel -= 1
end

But what exactly are you trying to achieve here? The modulus operation will always evaluate to true since it will always return a number. I assume you mean to do this:

while math.round(formulaLevel) % requiredLevel ~= 0 do
	formulaLevel -= 1
    task.wait() -- prevent Script Exhaustion
end

[UnrealForUnreal]

The modulus operator returns a number; therefore, you need to compare it with a number to return a bool (for the if statement, that only evaluates booleans).

[PhantomGame_Youtube (Ze_InSoRiTy)]

@HugeCoolboy2007

while not (math.round(formulaLevel) % requiredLevel) do
	formulaLevel -= 1
end

Well cuz i’m earlier checking if FormulaLevel > RequiredLevel, so i lower this value to modulus them and increase upgrade exponent. And when it do 8(for example) % 5 it just gives me false answer and skips this part of code:

while formulaLevel > 0 and math.round(formulaLevel) % requiredLevel >= 0 and math.round(formulaLevel) % requiredLevel <= 0.5  do
--code
end

[PhantomGame_Youtube (Ze_InSoRiTy)]

EDIT: OK seems i don’t really need this weird check. This line works properly as i see:

while formulaLevel > 0 and math.round(formulaLevel) % requiredLevel >= 0  do 
--code
end

[UnrealForUnreal]

The modulus operator returns the remainder of an Euclidean division (division by integer numbers).
So, for example, 11 % 2 results in 1, because the 2 goes into 11 five times, and 1 is left over. Or, another example, would be 14 % 3: it results in 2, because 3 goes into 14 four times and 2 is left over.

So, naturally, if the result of the modulus is 0, then there’s no remainder. if you want to make a ~% operator, you need to invert the comparison operator implemented.
For instance, if this next code represents “%”:

if a % b == 0 then

This next code represents ~%:

if a % b ~= 0 then