Math Is Fun Forum
You are not logged in.
- Topics: Active | Unanswered
Pages: 1
#1 2014-07-08 23:20:18
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Bitter running
B runs a race. His friend Ditta uses a radar gun on him. But Ditta has more interesting things to do so he only times B every quarter of an hour. B completes the race in 90 minutes. Below is Ditta's data:
Question; How far did B run?
A says) It seems B even runs discrete like, hahhahahhaha.
B says) Why is that funny?
D says) Who is Ditta?
C says) You ran 91 miles, congratulations B. 91 miles in 90 minutes is a new worlds record. Ever play any soccer?
E says) That is idiotic. 91 miles in 90 minutes! The correct answer is
B says) Hold on E, that is correct but let us let someone else get it.
Can you?
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
Offline
#2 2014-07-09 00:24:04
- anonimnystefy
- Real Member
- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,049
Re: Bitter running
Hi bobbym
Here lies the reader who will never open this book. He is forever dead.
Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment
The knowledge of some things as a function of age is a delta function.
Offline
#3 2014-07-09 00:50:54
Re: Bitter running
What is a radar gun and who is Ditta?
'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
I'm not crazy, my mother had me tested.
Offline
#4 2014-07-09 00:53:53
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Bitter running
A radar gun measures the speed of a moving object. Ditta is the guy who got the data, hence Ditta's data.
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
Offline
#5 2014-07-09 01:36:35
- anonimnystefy
- Real Member
- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,049
Re: Bitter running
I will try working on it a bit more.
I see B has learned.
Here lies the reader who will never open this book. He is forever dead.
Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment
The knowledge of some things as a function of age is a delta function.
Offline
#6 2014-07-09 01:43:28
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Bitter running
B has learned, I do not follow you?
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
Offline
#7 2014-07-09 01:54:50
- anonimnystefy
- Real Member
- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,049
Re: Bitter running
He's learned not to argue with those guys anymore.
Here lies the reader who will never open this book. He is forever dead.
Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment
The knowledge of some things as a function of age is a delta function.
Offline
#8 2014-07-09 01:58:28
- gAr
- Member
- Registered: 2011-01-09
- Posts: 3,482
Re: Bitter running
Hi bobbym,
"Believe nothing, no matter where you read it, or who said it, no matter if I have said it, unless it agrees with your own reason and your own common sense" - Buddha?
"Data! Data! Data!" he cried impatiently. "I can't make bricks without clay."
Offline
#9 2014-07-09 03:12:10
Re: Bitter running
'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
I'm not crazy, my mother had me tested.
Offline
#10 2014-07-09 05:38:42
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Bitter running
Hi;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
Offline
#11 2014-07-09 09:59:32
- phrontister
- Real Member
- From: The Land of Tomorrow
- Registered: 2009-07-12
- Posts: 4,890
Re: Bitter running
Hi Bobby,
"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson
Online
#12 2014-07-09 10:02:15
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Bitter running
Hi phrontister;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
Offline
#13 2014-07-09 10:10:10
- phrontister
- Real Member
- From: The Land of Tomorrow
- Registered: 2009-07-12
- Posts: 4,890
Re: Bitter running
Thanks! 
Back to the soccer (Nederland vs Argentina), which looks like going to a penalty shootout because of equally-good defensive play from both sides not allowing any attacking freedom...unlike in yesterday's massacre by Germany over Brazil.
"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson
Online
#14 2014-07-09 12:31:12
Re: Bitter running
Yay! You have the Fit command too.
I will have to warn you about two things:
1. Do not trust Ditta. How can speed by 12 when t is 0? Normal atheletes start a race from rest.
2. You have given us values that have no digits after decimal. Any answer that gives any result that predicts more than one digit after the decimal is an approximation (until Ditta's magical gun provides infinite precision)
'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
I'm not crazy, my mother had me tested.
Offline
#15 2014-07-09 18:50:04
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Bitter running
You can call any point 0. The distance travelled is 90 minutes from there.
Whenever you see an integer, the precision is infinite.
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
Offline
#16 2014-07-09 20:48:31
- gAr
- Member
- Registered: 2011-01-09
- Posts: 3,482
Re: Bitter running
Hi bobbym,
"Believe nothing, no matter where you read it, or who said it, no matter if I have said it, unless it agrees with your own reason and your own common sense" - Buddha?
"Data! Data! Data!" he cried impatiently. "I can't make bricks without clay."
Offline
#17 2014-07-09 21:25:04
Re: Bitter running
What is a spline?
'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
I'm not crazy, my mother had me tested.
Offline
#18 2014-07-09 22:24:35
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Bitter running
Instead of trying to fit one big polynomial through those points you fit several smaller ones. Those are called splines. There is a little more but that is it.
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
Offline
Pages: 1