/sci/ - Science & Math

[Anonymous No.2311118]

Let's see who can solve this:

Using just three times the number 9 you must get exactly the number 1000. It's not allowed to use any other number, for example:

(9/9+9)^3=1000 is not allowed

[Anonymous No.2311134]

What operations are allowed?

[Anonymous No.2311143]

Any operations are allowed, as long as you don't use other numbers in the operation simbol

[Anonymous No.2311144]

9*(9*9+9)+9*9+9

[Anonymous No.2311148]

s(999)

[Naggarothian !!0S4L3hs2lkr No.2311152]

>>2311148
>s(999)
what operation does the s do?

[Anonymous No.2311153]

>>2311143
In that case, S(S(S(S(S(...(S(9+9+9))...))))) does the trick. Or f(9+9+9) for that matter, where f is defined as f(x) = 1000.

[Anonymous No.2311154]

whas thw reward?
n e way is 9^9 as in nine squred allowed?

[Anonymous No.2311160]

>>2311152
s is the successor function

[Anonymous No.2311167]

>>2311148
OP here, and that is one possible sollution

Gratz

[Anonymous No.2311174]

>>2311118
ack(9,ack(9,9))
>oh shit did I break the universe?

[Anonymous No.2311182]

999++

[Naggarothian !!0S4L3hs2lkr No.2311183]

>>2311160
Never heard of that before. What does it do?

[Anonymous No.2311190]

>>2311183
add one
it exists to define natural numbers
0 is a natural number
s(n) is a natural number if n is
???
count your profit

[Anonymous No.2311192]

S(k)=k+1 -> sucessor function

so it does the trick

[Anonymous No.2311194]

felt like using paint

[Anonymous No.2311206]

<span class="math">99\bar{9}=1000[/spoiler]

[Anonymous No.2311219]

>>2311194

That equals 9 i think not 1000

[Anonymous No.2311289]

>>2311206

No, just no.

[Anonymous No.2311291]

What about <span class="math">(\lambda x, y, z \rightarrow (x + (x / x)) * (x + (x / x)) * (x + (x / x)))(9, 9, 9)[/spoiler]?

[Anonymous No.2311315]

(9/9)k