aaaaaahhhhhhh, Why does my for loop only go up to 0.99? [closed]

The issue is caused by floating point precision error. Due to the 100 addition operations you're doing, the binary value loses precision as it has a finite length and the bit-representation gets too long.

You can see the 0.99 you're getting is not exactly 0.99 with this piece of code:

for i = 0, 1, 0.01 do
    print(i == 0.99)
end

It is generally considered a bad practice to use decimals in for loops due to this very issue. A way better idea is to simply use integers and divide them back into the decimal form if necessary:

for i = 0, 100 do
    i = i / 100
    print(i)
end

It might be a simple fix. Either:

• Add 1 to your i variable if you aren't going to be using 0

for i = 0, 1, 0.01 do
    print(i + 1)
end

• Or instead of 1, put 1.01 if you are going to use 0

for i = 0, 1.01, 0.01 do
    print(i)
end