Australian Politics Forum - + Interesting Maths Questions +

Lisa Jones Gold Member Offline Australian Politics Posts: 39047 Sydney Gender:	+ Interesting Maths Questions + Mar 31^st, 2022 at 10:34pm I'm hoping this topic will catch the attention of a few mathematicians on OzPol. My question : If .... 1! = 1 2! = 2 3! = 6 4! = 24 Then how is it that 0! = 1?
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Captain Caveman Gold Member Offline Australian Politics Posts: 6211 Gender:	Re: + Interesting Maths Questions + Reply #1 - Mar 31^st, 2022 at 10:40pm Because you're multiplying diagonally down and left.
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Lisa Jones Gold Member Offline Australian Politics Posts: 39047 Sydney Gender:	Re: + Interesting Maths Questions + Reply #2 - Mar 31^st, 2022 at 10:55pm Captain Caveman wrote on Mar 31^st, 2022 at 10:40pm: Because you're multiplying diagonally down and left. Very good 👍 Or dividing up and right! Awesome ✅
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Lisa Jones Gold Member Offline Australian Politics Posts: 39047 Sydney Gender:	Re: + Interesting Maths Questions + Reply #3 - Mar 31^st, 2022 at 11:04pm Question : What number is now known as : The BLACK HOLE number? And why?
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UnSubRocky Gold Member Offline Crocodile Hunter: Origins Posts: 25008 Rockhampton Gender:	Re: + Interesting Maths Questions + Reply #4 - Mar 31^st, 2022 at 11:37pm Captain Caveman wrote on Mar 31^st, 2022 at 10:40pm: Because you're multiplying diagonally down and left. If you are multiplying down and left, you would still end up with 0 as the answer. ie., 0 x 1 = 0.
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Dnarever

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Re: + Interesting Maths Questions +
Reply #5 - Mar 31^st, 2022 at 11:53pm

UnSubRocky wrote on Mar 31^st, 2022 at 11:37pm:

Captain Caveman wrote on Mar 31^st, 2022 at 10:40pm:

Because you're multiplying diagonally down and left.

If you are multiplying down and left, you would still end up with 0 as the answer. ie., 0 x 1 = 0.

This would fit above the top line 0! = 1.

The formula would take the 1 from here and multiply it with the left hand 1 from the left of the below line 1!=1 (1X1= 1)

0! = 1

1
! = 1

2! = 2

3! = 6

4! = 24

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UnSubRocky Gold Member Offline Crocodile Hunter: Origins Posts: 25008 Rockhampton Gender:	Re: + Interesting Maths Questions + Reply #6 - Apr 1^st, 2022 at 12:33am Oh, I see what you mean.
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Jovial Monk Gold Member Online Dogs not cats! Posts: 47314 Gender:	Re: + Interesting Maths Questions + Reply #7 - Apr 1^st, 2022 at 1:59am https://www.thoughtco.com/why-does-zero-factorial-equal-one-3126598 0! = 1 by definition Or you can consider it meaning there is only one way to arrange a set with no members.
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Jim Lahey Gold Member Offline Australian Politics Posts: 2447 Lisa's Merc Gender:	Re: + Interesting Maths Questions + Reply #8 - Apr 1^st, 2022 at 5:14am Lisa is clutching at straws trying to be relevant
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Lisa Jones Gold Member Offline Australian Politics Posts: 39047 Sydney Gender:	Re: + Interesting Maths Questions + Reply #9 - Apr 1^st, 2022 at 7:05am Lisa Jones wrote on Mar 31^st, 2022 at 11:04pm: Question : What number is now known as : The BLACK HOLE number? And why? Anyone had a go at this one yet? It's an interesting answer IMO.
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Bobby. Gold Member Offline Australian Politics Posts: 105380 Melbourne Gender:	Re: + Interesting Maths Questions + Reply #10 - Apr 1^st, 2022 at 7:12am Hi Lisa, the important maths number e is derived from factorials. https://en.wikipedia.org/wiki/E_(mathematical_constant)
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Lisa Jones

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Re: + Interesting Maths Questions +
Reply #11 - Apr 1^st, 2022 at 7:19am

Bobby. wrote on Apr 1^st, 2022 at 7:12am:

Hi Lisa,
the important maths number e is derived from factorials.

Yes!!! You're right! Ohhh now that took me back to my days where I couldn't put down my Advanced Maths textbooks lol.

Do you believe I still find myself waking up of a morning having had dreams of sitting in Pure Maths lectures at Uni ? I miss those days ....I felt so alive because my brain was constantly being amazed and challenged.

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Bobby.

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Reply #12 - Apr 1^st, 2022 at 7:26am

Lisa Jones wrote on Apr 1^st, 2022 at 7:19am:

Bobby. wrote on Apr 1^st, 2022 at 7:12am:

Hi Lisa,
the important maths number e is derived from factorials.

Yes!!! You're right! Ohhh now that took me back to my days where I couldn't put down my Advanced Maths textbooks lol.

Do you believe I still find myself waking up of a morning having had dreams of sitting in Pure Maths lectures at Uni ? I miss those days ....I felt so alive because my brain was constantly being amazed and challenged.

I remember it too.
Do you remember that e is a transcendental number?

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Lisa Jones

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Re: + Interesting Maths Questions +
Reply #13 - Apr 1^st, 2022 at 7:28am

Bobby. wrote on Apr 1^st, 2022 at 7:26am:

Lisa Jones wrote on Apr 1^st, 2022 at 7:19am:

Bobby. wrote on Apr 1^st, 2022 at 7:12am:

Hi Lisa,
the important maths number e is derived from factorials.

Yes!!! You're right! Ohhh now that took me back to my days where I couldn't put down my Advanced Maths textbooks lol.

Do you believe I still find myself waking up of a morning having had dreams of sitting in Pure Maths lectures at Uni ? I miss those days ....I felt so alive because my brain was constantly being amazed and challenged.

I remember it too.
Do you remember that e is a transcendental number?

Ha! Is this where your Namaste 🙏 comes in 😂?

You know WHY it's called "e" of course!

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If I let myself be bought then I am no longer free.

HYPATIA - Greek philosopher, mathematician and astronomer (370 - 415)

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Bobby. Gold Member Offline Australian Politics Posts: 105380 Melbourne Gender:	Re: + Interesting Maths Questions + Reply #14 - Apr 1^st, 2022 at 7:37am Lisa Jones wrote on Apr 1^st, 2022 at 7:28am: Ha! Is this where your Namaste 🙏 comes in 😂? You know WHY it's called "e" of course! Euler's number. Namaste.
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Question: Is lisa a houso?
yes 8 (80.0%) no 2 (20.0%) Total votes: 10 « Created by: Jim Lahey on: Apr 1^st, 2022 at 7:35pm »