How do I into math?

>>8289096
take your number N, divide by 8. Then either round up or down depending on if you want the remainder to trigger the random point application. Whatever you do, you end up with a new number call it X as your answer.

Assuming you want to have equal chance of either randomly adding or subtracting, you then need to call a function that uses an actual RNG and set it up to return one of two values (depends on the program language you use), 1 or -1. Do this X number of times and sum the results, and add this sum to N.

You cant write an explicit formula for this, as it requires randomness. You can write a formula for the expectation value. Look into binomial distributions for a start.

>>8289106

Thanks. That was very helpful.

>no explicit formula

I guess it's pretty much as I expected.

>>8289161
There is undoubtably mathematical notation for random values and functions, but again, you wouldnt be able to solve it explicitly.

Most people just write the problem down in the form of a computer function.

>>8289096
Take a modulo 8 of the input number
so x = 19 mod 8 = 2
this tells you the number of time the RNG will be applied.

create a variable to hold the number of points the RNG manipulated the value already and set it to zero
int changed = 0;

Then create a cycle
for (int i = 0 i < x; i++)
in which you get a random number between 0 and 100
int num = rand(0,100)

then simply if num > 50 add a point to the "changed" variable and if num <= 50 subtract a point from the changed variable but only do that if changed < 8 && changed > -8

in the end take the output and add the "changed" variable to that.

there is no way to describe this concretely and purely in math. It has to be a function

division by 0 would do the opposite of a black hole

>>8289832
We don't know that

>>8289844
division by 0 is infinite

>>8289846
Except we don't know that. In reality x/0 is undefined. we just decided based on some simple logic that it should be infinite. but in mathematical sense, it doesn't actually work.

take a look at this example
6 / 2 = x
this implies that
2 * x = 6
x = 3

that is simple but consider 0
6 / 0 = x
so in mathematics it also has to be true that
0 * x = 6
this has no solution as any number you multiply by 0 has to be 0, so how do you get 6?
is 0 * inf = 6 ?
if so, then why it also is true that 0 * inf = 7
because 7/0 = inf?

by this example you can see that we don't actualy know what division by 0 is or causes.
6 / 0 maybe as well equal "duck"

>>8289814
19 mod 8 =2 ?
even that, if i do 16 mod 8, it means i'll apply RNG 0 time ? What ?
i didn't even bother reading the rest, you are retarded m8

>>8289926
Oh yeah, fuck, sorry :d I was thinking about multiple things at one time and got that mix up. ofc you need to user integral divison or round down.

>>8289973
i guess not "integral div" but "integer div" ? idk, not my language :D simply whole number divison!

>>8289096
On the topic of "into math", just pick up some used textbooks on ebay and go through them cover to cover. start with basic shit (algebra) then intermediate (trig) then advanced (calc) and so on.

>>8289096
So, are we past the "do my homework" posts to "do my job" posts? At least, I hope it's for something important, anon.

Also, I guess you should have payed more attention to those math classes back then...