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#1 2009-09-10 14:06:25

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 89,117

Some sums

Hi;

Evaluate and show your methods:

When you get them, please use the hide button.

Last edited by bobbym (2009-09-10 16:56:09)


In mathematics, you don't understand things. You just get used to them.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

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#2 2009-09-10 17:57:29

Fruityloop
Member
Registered: 2009-05-18
Posts: 120

Re: Some sums

Last edited by Fruityloop (2009-09-10 18:03:42)


The eclipses from Algol (an eclipsing binary star) come further apart in time when the Earth is moving away from Algol and closer together in time when the Earth is moving towards Algol, thereby proving that the speed of light is variable and that Einstein's Special Theory of Relativity is wrong.

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#3 2009-09-11 04:06:11

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 89,117

Re: Some sums

Hi Fruityloop;

Last edited by bobbym (2009-09-11 04:06:50)


In mathematics, you don't understand things. You just get used to them.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

Online

#4 2009-09-11 06:09:01

Fruityloop
Member
Registered: 2009-05-18
Posts: 120

Re: Some sums

Last edited by Fruityloop (2009-09-11 06:09:42)


The eclipses from Algol (an eclipsing binary star) come further apart in time when the Earth is moving away from Algol and closer together in time when the Earth is moving towards Algol, thereby proving that the speed of light is variable and that Einstein's Special Theory of Relativity is wrong.

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#5 2009-09-11 06:14:40

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 89,117

Re: Some sums

Hi Fruityloop;


In mathematics, you don't understand things. You just get used to them.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

Online

#6 2009-09-11 07:03:15

Fruityloop
Member
Registered: 2009-05-18
Posts: 120

Re: Some sums


Math can be so frustrating!swear

Last edited by Fruityloop (2009-09-11 07:08:27)


The eclipses from Algol (an eclipsing binary star) come further apart in time when the Earth is moving away from Algol and closer together in time when the Earth is moving towards Algol, thereby proving that the speed of light is variable and that Einstein's Special Theory of Relativity is wrong.

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#7 2009-09-11 07:13:28

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 89,117

Re: Some sums

HI Fruityloop;

Last edited by bobbym (2009-09-11 07:13:59)


In mathematics, you don't understand things. You just get used to them.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

Online

#8 2009-09-14 08:43:25

Fruityloop
Member
Registered: 2009-05-18
Posts: 120

Re: Some sums


This one took awhile to solve.

Last edited by Fruityloop (2009-09-14 08:59:24)


The eclipses from Algol (an eclipsing binary star) come further apart in time when the Earth is moving away from Algol and closer together in time when the Earth is moving towards Algol, thereby proving that the speed of light is variable and that Einstein's Special Theory of Relativity is wrong.

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#9 2009-09-14 08:58:50

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 89,117

Re: Some sums

Hi Fruityloop;

Yep! and novel too.


In mathematics, you don't understand things. You just get used to them.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

Online

#10 2009-09-15 13:58:40

Fruityloop
Member
Registered: 2009-05-18
Posts: 120

Re: Some sums


This was the most difficult of the three.
It is interesting that a complicated expression can be summed so simply.

Last edited by Fruityloop (2009-09-15 14:18:20)


The eclipses from Algol (an eclipsing binary star) come further apart in time when the Earth is moving away from Algol and closer together in time when the Earth is moving towards Algol, thereby proving that the speed of light is variable and that Einstein's Special Theory of Relativity is wrong.

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#11 2009-09-15 14:14:42

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 89,117

Re: Some sums

Hi Fruityloop;

That is correct!

You did really well. Got all three!


In mathematics, you don't understand things. You just get used to them.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

Online

#12 2009-11-24 18:33:52

Denominator
Member
Registered: 2009-11-23
Posts: 155

Re: Some sums

How do we hide?

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#13 2009-11-25 00:05:45

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 89,117

Re: Some sums

Hi Denominator:

[hide] put your stuff in here [\hide]


In mathematics, you don't understand things. You just get used to them.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

Online

#14 2009-11-25 03:55:58

phrontister
Real Member
From: The Land of Tomorrow
Registered: 2009-07-12
Posts: 3,854

Re: Some sums

Hi Denominator,

bobbym wrote:

[hide] put your stuff in here [\hide]

Actually the backslash (\) should be a forward slash (/)

The 'hide' feature, and some others, are covered here.

You can also find out how someone did something or other just by clicking the "Quote" tab in the bottom right-hand corner of their post...but you must be logged in to see that tab.

Last edited by phrontister (2009-11-25 03:59:34)


"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

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#15 2009-11-25 22:01:05

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 89,117

Re: Some sums

Hi Denominator;

I have been backslashed again. Phrontister is right.


In mathematics, you don't understand things. You just get used to them.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

Online

#16 2009-11-26 06:01:11

Denominator
Member
Registered: 2009-11-23
Posts: 155

Re: Some sums

Okay thanks!

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#17 2011-03-30 02:39:41

gAr
Member
Registered: 2011-01-09
Posts: 3,479

Re: Some sums

Evaluate and show your methods:

When you get them, please use the hide button.


"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."

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#18 2011-03-30 03:05:57

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 89,117

Re: Some sums

Hi gAr;


In mathematics, you don't understand things. You just get used to them.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

Online

#19 2011-03-30 03:08:17

gAr
Member
Registered: 2011-01-09
Posts: 3,479

Re: Some sums

Hi bobbym,

Trying!


"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."

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#20 2011-03-30 03:10:30

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 89,117

Re: Some sums

I think you are going to pull a math muscle. That can be painful. Do not forget to stretch before you do any more of them. Drink plenty of liquids too.


In mathematics, you don't understand things. You just get used to them.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

Online

#21 2011-03-30 03:43:41

gAr
Member
Registered: 2011-01-09
Posts: 3,479

Re: Some sums

Hi bobbym,

Thanks for the advice.
For me, math is relaxing. I drink plenty of water, weather is very hot here!


"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."

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#22 2011-03-30 04:14:58

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 89,117

Re: Some sums

I was just kidding. I have never heard of math muscle pull.


In mathematics, you don't understand things. You just get used to them.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

Online

#23 2011-03-30 04:20:57

gAr
Member
Registered: 2011-01-09
Posts: 3,479

Re: Some sums

Oh, is it, ok. I too haven't heard about it.
I thought of something like neurons misfiring!


"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."

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#24 2011-03-30 04:35:39

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 89,117

Re: Some sums

The nearest thing was a report from the old Soviet Union. They used to believe in "overexertion of brain cells."


In mathematics, you don't understand things. You just get used to them.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

Online

#25 2011-03-30 04:40:36

gAr
Member
Registered: 2011-01-09
Posts: 3,479

Re: Some sums

Interesting, until it happens to us!


"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."

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