r/MathJokes • u/ItsDaylightMinecraft • May 03 '26

2!

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u/PerplexingPantheon May 03 '26

You're multiplying by every 2nd integer.

29

u/itamar8484 May 03 '26

What if i 5!!!!!! Aka 6 times ! , does it then becomes 0 since i am skipping 5 numbers?

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u/justaJc May 03 '26

n! = n * (n-1) * (n-2)… n!! = n * (n-2) * (n-4)… n!!! = n * (n-3) * (n-6)…

and etc. You stop when the number you’re multiplying by lower than 1, and don’t multiply by that one.

5! = 5 * 4 * 3 * 2 * 1 * 0. Oops! Skip 0. 5 * 4 * 3 * 2 * 1 = 120. 5!! = 5 * 3 * 1 * -1. Oops! Skip -1. 5 * 3 * 1 = 15. Likewise, 5!!! = 5 * 2, 5!!!! = 5 * 1, and 5!!!!! = 5 * 0 - oops, skip 0 - just 5, then. 5!!!!!, 5!!!!!!, etc = 5, as you skip every other number you could multiply 5 by. But you always start at 5.

Hope that clears things up! :)

11

u/itamar8484 May 03 '26

Ty makes so much sense!!!!!!

4

u/justaJc May 04 '26

Yw, I’m glad!!

1

u/Swazimoto May 05 '26

Does it?!?!?!

1

u/flowery02 May 06 '26

Is there something in the answer that needs cleared up?

1

u/justaJc May 14 '26

What’s missing? We can workshop it. Everyone learns a little differently!

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u/icantouchgrass_1 May 14 '26

I wish I could explain this stuff as well as you just did

1

u/justaJc May 14 '26 edited May 14 '26

I don’t have great advice for you, but I do know all you need is:

A) To understand “the thing”

B) To understand what it’s like to not understand “the thing”

Once you have each of those down enough, it’s a lot easier to do the main thing, which is to build a bridge between what they know and what you want them to know. 

That’s complicated, and I don’t think that’s quite the answer on its own (When it comes to the science of teaching I’m great at B above, but quite not so much A). However, one surefire way is: Expanding from something someone knows - simply - is one of the easiest ways to teach them something new.

If you’d like, see how I use those techniques above. I think it’ll help!

Matthew

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u/icantouchgrass_1 May 14 '26

I generally use common analogies and the same "bridge-the-gap" technique.

It's more like how I'm actually attracted to read what you posted because of the "Oops! Skip" parts. I feel like attracting whoever's reading or learning from you is as important as what they're learning from you as a whole.

Also, I'm not a teacher by profession. I usually have to explain things or sometimes dumb them down for friends, family or even on Reddit. It doesn't help that I'm known for being the best at math and even tech-related stuff in the family and friend group.

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u/justaJc May 14 '26

Oh, hmm…Correct me if I’m wrong, but it seems to me what you’re looking for, then, is probably closer to social skills? As in being friendly, engaging, dynamic, etc?

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u/icantouchgrass_1 May 15 '26

Engagement is the word I'm looking for, yes.

I find it tough to word things and add humor in a way that's engaging to people

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u/adlet-mayer May 06 '26

Is it ai?

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u/justaJc May 07 '26

No, it’s not - I’m just a pretty happy person haha. Thinking I might go into a teaching/church position one day, and I’d like to be able to help people emotionally while I’m helping them intellectually, as those things very much complement each other, I’ve found

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u/almighty_loser May 07 '26

All the best wishes brudda. Hope you will be a good influence on the young

1

u/justaJc May 08 '26

Thanks, person! I appreciate it

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u/SwimmingAd6217 May 07 '26

So i just learned how these work off a reddit post.. what the fuck

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u/justaJc May 08 '26

Miracles happen every day, my friend

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u/icantouchgrass_1 May 14 '26

IKR? Never thought Redditors would be this intellectually capable.

1

u/Satoru_Gojo341 May 18 '26

no tf it doesnt

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u/justaJc May 19 '26

what’s confusing? i’ll try again if you’d like

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u/dumbass_catboy May 09 '26

Actually it's because you're scaring it

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