Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work.

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Posted to alt.aol.tricks.alt.machines.cnc,rec.crafts.metalworking,misc.survivalism
Cliff
 
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Default National Pi Day

On Tue, 14 Mar 2006 09:33:09 -0500, "Mecoman"
wrote:

Today, 3/14 is National Pi Day, celebrating the mathematical value that
proves that what goes around doesn't necessarily come around.

Math departments around the nation are celebrating by singing songs
dedicated to Pi, and by, you guessed it, eating pie.


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Jon Elson
 
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Default National Pi Day



Roger wrote:

"Cliff" wrote in message
.. .


On Tue, 14 Mar 2006 09:33:09 -0500, "Mecoman"





wrote:



Today, 3/14 is National Pi Day, celebrating the mathematical value that
proves that what goes around doesn't necessarily come around.

Math departments around the nation are celebrating by singing songs
dedicated to Pi, and by, you guessed it, eating pie.



National Pi day should be 14/3 surely, using 3/14 gives some staggeringly
wrong answers.




Umm, 14 (divided by) 3 is not real close, either, 4.666667

3.14 is obviously what somebody had in mind. That's only an approximation,
too, but it is as close as the calendar gets. We've already passed
3-14-1592,
about 100 years after Columbus sailed West.

Jon

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Tim Wescott
 
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Default National Pi Day

Roger wrote:

"Cliff" wrote in message
...

On Tue, 14 Mar 2006 09:33:09 -0500, "Mecoman"




wrote:


Today, 3/14 is National Pi Day, celebrating the mathematical value that
proves that what goes around doesn't necessarily come around.

Math departments around the nation are celebrating by singing songs
dedicated to Pi, and by, you guessed it, eating pie.



National Pi day should be 14/3 surely, using 3/14 gives some staggeringly
wrong answers.


22nd of July, since 22/7 is only 0.04% off?

--

Tim Wescott
Wescott Design Services
http://www.wescottdesign.com

Posting from Google? See http://cfaj.freeshell.org/google/
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Don Bruder
 
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Default National Pi Day

In article ,
"Roger" wrote:

"Cliff" wrote in message
...
On Tue, 14 Mar 2006 09:33:09 -0500, "Mecoman"


wrote:

Today, 3/14 is National Pi Day, celebrating the mathematical value that
proves that what goes around doesn't necessarily come around.

Math departments around the nation are celebrating by singing songs
dedicated to Pi, and by, you guessed it, eating pie.



National Pi day should be 14/3 surely, using 3/14 gives some staggeringly
wrong answers.



So does 14/3, but I'll give it credit for being a lot closer than 3/14

14/3 = 4.666... according to the math I learned.
3/14 = 0.214285

Methinks that the math folks would be better off celebrating it on July
22 (22/7, doncha know...)

--
Don Bruder - - If your "From:" address isn't on my whitelist,
or the subject of the message doesn't contain the exact text "PopperAndShadow"
somewhere, any message sent to this address will go in the garbage without my
ever knowing it arrived. Sorry... http://www.sonic.net/~dakidd for more info
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dan
 
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Default National Pi Day

Tim Wescott wrote:
Roger wrote:

"Cliff" wrote in message
...

On Tue, 14 Mar 2006 09:33:09 -0500, "Mecoman"





wrote:


Today, 3/14 is National Pi Day, celebrating the mathematical value that
proves that what goes around doesn't necessarily come around.

Math departments around the nation are celebrating by singing songs
dedicated to Pi, and by, you guessed it, eating pie.



National Pi day should be 14/3 surely, using 3/14 gives some staggeringly
wrong answers.


22nd of July, since 22/7 is only 0.04% off?

Nah.

3/14 @ 1:59 26.5+ sec

Dan


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Brent Philion
 
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Default National Pi Day

Math folks have been decimal for a very long time.

I doubt anyone my age was ever taught about 22/7

Fyi I'm 26

Don Bruder wrote:
In article ,
"Roger" wrote:


"Cliff" wrote in message
. ..

On Tue, 14 Mar 2006 09:33:09 -0500, "Mecoman"




wrote:


Today, 3/14 is National Pi Day, celebrating the mathematical value that
proves that what goes around doesn't necessarily come around.

Math departments around the nation are celebrating by singing songs
dedicated to Pi, and by, you guessed it, eating pie.

National Pi day should be 14/3 surely, using 3/14 gives some staggeringly
wrong answers.




So does 14/3, but I'll give it credit for being a lot closer than 3/14

14/3 = 4.666... according to the math I learned.
3/14 = 0.214285

Methinks that the math folks would be better off celebrating it on July
22 (22/7, doncha know...)

  #7   Report Post  
Posted to rec.crafts.metalworking
Don Bruder
 
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Default National Pi Day

In article ,
Brent Philion wrote:

Math folks have been decimal for a very long time.

I doubt anyone my age was ever taught about 22/7

Fyi I'm 26


If this is indeed the case, then it speaks volumes about the "dumbing
down" of education - American or otherwise. 22/7 was the *VERY FIRST*
approximation of pi used when we started playing with circles in math
class. (and for several weeks at the beginning, was the only value
permitted - If you turned in a problem that showed precision indicating
you were using 3.14-etc you got dinged for it until it was "officially"
introduced - I found it frustrating to have to "dumb things down" to
make it look like I was doing it "the approved way", particularly when
my results were more correct - I'd been doing calculations involving pi
for at least a year prior, since I was messing about with several things
kids my age weren't expected to understand, let alone be interested in)

Then, of course, along came the giggle-factor when we started finding
areas of circles - "Pi R square? No, stupid! Pie are round. Cornbread
are square!" That one got me 3 days of detention for smart-mouthing
the teacher. But was it worth it to watch old sourpuss Johnson turning
purple and nearly choking as he tried to keep restore order to the
class? You dman well better believe it!

--
Don Bruder - - If your "From:" address isn't on my whitelist,
or the subject of the message doesn't contain the exact text "PopperAndShadow"
somewhere, any message sent to this address will go in the garbage without my
ever knowing it arrived. Sorry... http://www.sonic.net/~dakidd for more info
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Jon Elson
 
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Default National Pi Day

Ignoramus4546 wrote:
What is greater, pi to the degree of e, or e to the degree of pi?

e pi
pi = e

pi^e = e^pi

e^pi is 23.140693
pi^e is 22.459158

if I did this right on my scientific calculator.

Jon
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Spehro Pefhany
 
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Default National Pi Day

On Wed, 15 Mar 2006 12:00:17 -0600, the renowned Jon Elson
wrote:

Ignoramus4546 wrote:
What is greater, pi to the degree of e, or e to the degree of pi?

e pi
pi = e

pi^e = e^pi

e^pi is 23.140693
pi^e is 22.459158

if I did this right on my scientific calculator.

Jon


I like Euler's identity:

e^(pi*i) + 1 = 0

(j rather than i for us EE types)


Best regards,
Spehro Pefhany
--
"it's the network..." "The Journey is the reward"
Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog Info for designers: http://www.speff.com
  #10   Report Post  
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Brent Philion
 
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Default National Pi Day

I got grilled early into understanding fractions which is the only
reason i know about 22/7 too many people in my generation cant
understand fractions and cant see how it helps to let a fraction stand
at time rather than decimalizing everything and letting infinite
variables sit all ove the place as it gets punched into a calculator

I almost failed a college Statistic course because it was how to make a
specific model of calculator do stats when i owned a different model of calc

And that was a COLLEGE math course

(GO figure that specific how to use a calc math course was my lowest
mark in all college all the non bs courses i did great in)

funny how i can run the numbers for radio AC theory but apparently fail
a stats course that needs me to use a specif model of calc

Even here in Canada stuff is getting dumbed down Ijust hope its stuff
with liited applications that dont bit people downt he way in the long term.

Don Bruder wrote:
In article ,
Brent Philion wrote:


Math folks have been decimal for a very long time.

I doubt anyone my age was ever taught about 22/7

Fyi I'm 26



If this is indeed the case, then it speaks volumes about the "dumbing
down" of education - American or otherwise. 22/7 was the *VERY FIRST*
approximation of pi used when we started playing with circles in math
class. (and for several weeks at the beginning, was the only value
permitted - If you turned in a problem that showed precision indicating
you were using 3.14-etc you got dinged for it until it was "officially"
introduced - I found it frustrating to have to "dumb things down" to
make it look like I was doing it "the approved way", particularly when
my results were more correct - I'd been doing calculations involving pi
for at least a year prior, since I was messing about with several things
kids my age weren't expected to understand, let alone be interested in)

Then, of course, along came the giggle-factor when we started finding
areas of circles - "Pi R square? No, stupid! Pie are round. Cornbread
are square!" That one got me 3 days of detention for smart-mouthing
the teacher. But was it worth it to watch old sourpuss Johnson turning
purple and nearly choking as he tried to keep restore order to the
class? You dman well better believe it!

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