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Tom the dancing bug TOON: Bible Math! (Original Post) n2doc Feb 2014 OP
That last panel is basically 'Idiocracy'. Aristus Feb 2014 #1
Maybe Idiocracy wasn't about the lowering IQ but LiberalArkie Feb 2014 #3
Math Atheism Bok_Tukalo Feb 2014 #2
Pi fun fact pokerfan Feb 2014 #4
Baker: Pi R round Fumesucker Feb 2014 #5
Me: Pi R Good! FSogol Feb 2014 #6
And cornbread R square Cheviteau Feb 2014 #7
Before calculators... hunter Feb 2014 #10
yeah, you caught me pokerfan Feb 2014 #12
I've kept my slide rules too. hunter Feb 2014 #16
I think it is unknown whether e to the pi is Lucky Luciano Feb 2014 #11
LOL pokerfan Feb 2014 #13
yes of course. nt Lucky Luciano Feb 2014 #14
Mmmmmm. Pumpkin Pi bearssoapbox Feb 2014 #8
Most beautiful fun pi fact Bernardo de La Paz Feb 2014 #9
What does it all mean? panader0 Feb 2014 #15
- IDemo Feb 2014 #18
It relates two important numbers with the identities 1 & 0 and complex numbers Bernardo de La Paz Feb 2014 #20
My training as an evolutionary biologist tells me that's a tautology... hunter Feb 2014 #17
This message was self-deleted by its author Bernardo de La Paz Feb 2014 #19

pokerfan

(27,677 posts)
4. Pi fun fact
Wed Feb 12, 2014, 04:24 PM
Feb 2014

e ? - ? = 20. It's a good way to check if your calculator is any good.

What is "pi"?
Mathematician: Pi is the number expressing the relationship between the circumference of a circle and its diameter.
Physicist: Pi is 3.1415927 plus or minus 0.00000005
Engineer: Pi is about 3.

hunter

(38,317 posts)
10. Before calculators...
Wed Feb 12, 2014, 05:24 PM
Feb 2014

... I remember pi was on the slide rule. In our "honors" seventh grade class we learned to use slide rules. Our teacher had a giant working slide rule.

http://www.dannychesnut.com/SlideRule/SlideRule.htm

Without the slide rule, on paper, it was 22/7. Or 355/113 for very much overly fussy work.

I don't think an engineer would say "about 3" it would be more like "a bit more than 3."

There are some really cool shortcuts for pi in the integer math often used in computer graphics and sound rendering.

It's an engineering skill to correctly dismiss the unimportant details and recognize the important details.



http://xkcd.com/217

pokerfan

(27,677 posts)
12. yeah, you caught me
Wed Feb 12, 2014, 07:51 PM
Feb 2014

but it's fun to weird people out with that expression.

I still have several slide rules and even keep a six inch Pickett in the glove box for calculating mileage. Gets me looks at the pump.

Lucky Luciano

(11,257 posts)
11. I think it is unknown whether e to the pi is
Wed Feb 12, 2014, 05:29 PM
Feb 2014

...Rational or not. If your equation were exact, then you would also have a proof that pi is rational which it isn't! Very nice approximation though for e to the pi - I never knew that one.

Bernardo de La Paz

(49,005 posts)
20. It relates two important numbers with the identities 1 & 0 and complex numbers
Thu Feb 13, 2014, 01:21 PM
Feb 2014

e is the base of natural logarithms and exponentiation. Pi is as we know all about circles. 1 is the identity element for multiplication (has no effect). 0 is the identity element for addition (has no effect). i is the square root of -1, which can't exist in real number space but does exist in the complex numbers.

This all relates to harmonics and many other beautiful parts of mathematics, physics, and engineering.

hunter

(38,317 posts)
17. My training as an evolutionary biologist tells me that's a tautology...
Wed Feb 12, 2014, 08:24 PM
Feb 2014

... but it's still very pretty.


Response to Bernardo de La Paz (Reply #9)

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