# A Moderator's Apology

I keep on disputing numerous problems of this type. I don't understand why the answer is so obvious to the author.

In my opinion, these questions are not really good.

I'll take Spiked Math's help to illustrate this out:

Spiked

Moral: There are infinite formulae that fits a finite number of elements. There is no best fit formula. It is just your perception

Fit

3 years, 4 months ago

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Fit this polynomial

- 3 years, 4 months ago

"much solution"

"very logic"

LMAO!!!

- 3 years, 3 months ago

Find the next number of the sequence

$$1, 1, 1, 120, ?$$

Ans: $$25852016738884976640000$$, because

$$\Gamma (\Gamma (1))=1$$
$$\Gamma (\Gamma (2))=1$$
$$\Gamma (\Gamma (3))=1$$
$$\Gamma (\Gamma (4))=120$$
$$\Gamma (\Gamma (5))=25852016738884976640000$$

- 3 years, 4 months ago

Oh man, I just saw this post, I should have used this for TKC.

- 3 years ago

Hi; whenever I see those type questions I always just fit a polynomial through them. Admittedly, it was tough with Q2.

- 3 years, 4 months ago

:D I agree with you. I fit the polynomial too. But when I try to enter the answer, Brilliant says that only integer values are allowed.

- 3 years, 4 months ago

bhaiya is it worth to join a dummy school in 11 th and 12 th

- 1 month, 2 weeks ago

Sorry, I do not know what that means. What is a dummy school?

- 1 month, 2 weeks ago

agnishom bhaiya what moderator at brilliant.org means

- 1 month, 3 weeks ago

Moderators are responsible for helping improve the community experience, like curating nice problems, resolving reports, or seed community discussions

- 1 month, 3 weeks ago

how to be a moderator

- 1 month, 3 weeks ago

When Brilliant needs moderators, the Brilliant staff recruits moderators. There is no way to be one.

However, you can still help the community by actively participating in notes and solution discussions.

- 1 month, 3 weeks ago

offcourse after my boards i will actively participate in notes and discussions and also post questions. when u and rajdeep bhaiya were opted as moderators.

- 1 month, 2 weeks ago

That is great. Members like you are who makes the community come alive.

- 1 month, 2 weeks ago

Loved it .

- 3 years, 3 months ago

So, here's the ultimate way to cure this problem:

Let us come up with a way to put a polynomial through any set of inputs and outputs x and y.

Any clues?

For example, I defined one as follows:

Find the next number in the sequence: $$0,0,0,0,0,0,0,0,0,__$$

Ans: 10!

Now if there was a way to, say, put a function through something like 1, 4, 9, 16, 25, __ - that'd be great.

- 3 years, 3 months ago

This is the standard W|A/Mathematica command for fitting a polynomial

InterpolatingPolynomial[{1,4,9,16},x]


replace {1,4,9,16} with a set of your own data

- 3 years, 3 months ago

Well I am against those" odd number out of the set" type questions. I mean there we will always be able to choose a suitable prime p for which any 3 are quadratic residues while left one isn't

- 3 years, 4 months ago

1,3, and guess what's next? Something incomputable. Its the tree function. Next, 1, 1, 2, and guess what? Depends on the number of !'s. 0!!...=1, 1!!...=1, 2!!...=2, 3!!...=???

- 3 years, 4 months ago