Which is Your Favourite Irrational Number?

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Linda
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#21
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#21
I'm for e myself -I just love those natural logarithms!
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not1
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#22
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#22
(Original post by Ben.S.)
I'm pro root pi!!!

Ben
lol rooting it doesnt make it any more irrational
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Ben.S.
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#23
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#23
(Original post by edders)
lol rooting it doesnt make it any more irrational
No, but it's the integral of exp^(-x^2) - what fun. A beautiful piece of maths.

Ben
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not1
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#24
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#24
(Original post by Ben.S.)
No, but it's the integral of exp^(-x^2) - what fun. A beautiful piece of maths.

Ben
hmm thats a bit beyond me, i only did alevel maths.
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Linda
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#25
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#25
(Original post by Ben.S.)
No, but it's the integral of exp^(-x^2) - what fun. A beautiful piece of maths.

Ben
Another reason why I like e -it's causing me the least trouble in calculus
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Bigcnee
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#26
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#26
(Original post by elpaw)
i wonder if that is rational?
Infinitely unlikely.
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not1
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#27
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#27
(Original post by Linda)
Another reason why I like e -it's causing me the least trouble in calculus
dy/dx of e^x = e^x
nice and easy
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Helenia
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#28
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#28
What's phi? I did A-Level Maths and never heard of it!
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acidbubble
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#29
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#29
dy/dx of e^x = e^x
this is the same reason i like e, and it has many uses, roots of primes i aint used all that much, and pi gets a bit boring after a while. tho phi pi and e are all cool numbers
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Nylex
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#30
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#30
(Original post by Helenia)
What's phi? I did A-Level Maths and never heard of it!
I was wondering the same thing. Did/do you visit BBC boards?
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Rich
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#31
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#31
(Original post by Bigcnee)
Infinitely unlikely.
What makes you so sure? A proof please...
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not1
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#32
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#32
(Original post by Helenia)
What's phi? I did A-Level Maths and never heard of it!
phi (the 'golden ratio') = 1/2 + root5/2 and 1/2 – root5/2

http://www.mcs.surrey.ac.uk/Personal...html#simpledef
it crops up a lot in nature
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Helenia
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#33
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#33
(Original post by Nylex)
I was wondering the same thing. Did/do you visit BBC boards?
I did indeed. Why, did/do you? Which ones?

Thanks for the explanation, edders.
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Nylex
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#34
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#34
(Original post by Helenia)
I did indeed. Why, did/do you? Which ones?
Yeah, I used to. Can't remember what it was called now though. Your name just looked familiar.
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Sir I. Newton
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#35
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#35
(Original post by Helenia)
What's phi? I did A-Level Maths and never heard of it!
It's the solution to the quadratic equations:
x² = x + 1, or x - 1 = 1/x.

Its all so the ratio of consecutive fibonacci numbers as they get really big, the larger divided by the smaller. apart from that its more or less completely useless.
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DamianHolt
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#36
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#36
Maths is a **** subject.
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Nylex
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#37
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#37
(Original post by DamianHolt)
Maths is a **** subject.
Why?
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DamianHolt
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#38
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#38
(Original post by Nylex)
Why?
because it's boring, useless, and absolutely impossibly-rock-hard.
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Blamps
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#39
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#39
(Original post by Merry)
They all are good!!! but my vote is for Phi: a very interesting number!
you geek
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Nylex
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#40
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#40
(Original post by DamianHolt)
because it's boring, useless, and absolutely impossibly-rock-hard.
It may be boring to you, but it's certainly not useless.
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