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September 23, 2025, 08:25:50 am

Author Topic: TyErd's questions  (Read 42322 times)  Share 

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TyErd

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Re: TyErd's questions
« Reply #45 on: April 24, 2010, 08:07:51 pm »
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I dont get how you can use this height limitation to determine the maximal domain. Why are the extremes when r=0
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the.watchman

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Re: TyErd's questions
« Reply #46 on: April 24, 2010, 08:13:16 pm »
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The radius cannot be less than zero, or equal to zero to have a capsule at all, yes?
So r>0 (1)

Also, the height cannot be less than zero, or equal to zero to have a capsule
So h>0





(2)

So combining (1) and (2), you have

Does that make more sense?
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TyErd

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Re: TyErd's questions
« Reply #47 on: April 24, 2010, 08:22:06 pm »
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okay thats makes loads more sense. So how is radius used to find maximal domain?
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the.watchman

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Re: TyErd's questions
« Reply #48 on: April 24, 2010, 08:23:20 pm »
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The radius is the main variable of the eqn, so the domain is the possible values of r

Therefore, the domain is (0,30)  (as set out above)
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TyErd

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Re: TyErd's questions
« Reply #49 on: April 24, 2010, 08:27:49 pm »
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ohhhhh I get it now thankyou the.watchman!
"Don’t ever let somebody tell you you can’t do something, not even me.  Alright?  You got a dream, you gotta protect it.  People can’t do something themselves, they wanna tell you you can’t do it.  If you want something, go get it, period." - Chris Gardner

TyErd

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Re: TyErd's questions
« Reply #50 on: April 24, 2010, 08:32:42 pm »
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Okay another problem: Find the general solution of the equation

Write answers in exact values
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superflya

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Re: TyErd's questions
« Reply #51 on: April 24, 2010, 08:39:53 pm »
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bring the 2 over. u should be able to do it.
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the.watchman

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Re: TyErd's questions
« Reply #52 on: April 24, 2010, 08:40:42 pm »
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Why do I get the feeling I've stuffed it up...? :P

EDIT: Oops,
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TyErd

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Re: TyErd's questions
« Reply #53 on: April 24, 2010, 08:55:20 pm »
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Hm.. this is what I did:






but I know thats wrong coz im always wrong
"Don’t ever let somebody tell you you can’t do something, not even me.  Alright?  You got a dream, you gotta protect it.  People can’t do something themselves, they wanna tell you you can’t do it.  If you want something, go get it, period." - Chris Gardner

the.watchman

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Re: TyErd's questions
« Reply #54 on: April 24, 2010, 09:00:11 pm »
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Looks fine to me, just mine slightly different
I'm not entirely sure though
But you need a plus/minus in the last line :P
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TyErd

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Re: TyErd's questions
« Reply #55 on: April 24, 2010, 09:02:49 pm »
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Wouldn't the last line only be a plus because when you take the -3 over it becomes positive?
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the.watchman

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Re: TyErd's questions
« Reply #56 on: April 24, 2010, 09:05:16 pm »
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Nope, there are two cases for the plus/minus

CASE 1: Second last line is Positive



CASE 2: Second last line is Negative



So the result could be +ve or -ve, therefore the last line should have a
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TyErd

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Re: TyErd's questions
« Reply #57 on: April 24, 2010, 09:08:54 pm »
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Oh yeah your right its should be plus/minus. Anyway how come we have different answers
"Don’t ever let somebody tell you you can’t do something, not even me.  Alright?  You got a dream, you gotta protect it.  People can’t do something themselves, they wanna tell you you can’t do it.  If you want something, go get it, period." - Chris Gardner

the.watchman

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Re: TyErd's questions
« Reply #58 on: April 24, 2010, 09:12:10 pm »
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Oh yeah your right its should be plus/minus. Anyway how come we have different answers

You did

I did

They are equivalent (you 'built around' your n-pi's, I 'built over' my n-pi's if you get that)
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TyErd

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Re: TyErd's questions
« Reply #59 on: April 24, 2010, 09:13:47 pm »
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No but i'd like to know :)
"Don’t ever let somebody tell you you can’t do something, not even me.  Alright?  You got a dream, you gotta protect it.  People can’t do something themselves, they wanna tell you you can’t do it.  If you want something, go get it, period." - Chris Gardner