Wednesday, March 14, 2012

Math Does. Not. Lie!! (and I love Pi Day)



One of my favorite days of the year is March 14th.  March 14th, in the United States is known as Pi Day (π Day).  The number Pi (π), 3.14159, is a mathematical constant that is the ratio of a circle’s circumference to its diameter.  Pi (π) is used to help calculate many areas and volumes involving circles and arcs.

http://en.wikipedia.org/wiki/Pi
http://www.wolframalpha.com/input/?i=pi


In AutoCAD, one way to find Pi is to draw a circle with a diameter of 1 unit.  Select the circle and open the properties pallet.  You will see that the circumference is equal to Pi!!


If you are using AutoCAD’s QUICKCALC there is a button for Pi.
I promised a “Mind Blowing” blog post so here it is.  This will blow! Your! Mind! (unless of course you already knew about this.)

Math does not lie.  Geeks (like myself) love math.  Numbers (which are involved in math) are a favorite thing amongst many Geeks.  Several numbers are special to geeks.  Some of them are:
  • Pi (π) 3.1415926535
  • Euler’s Number (e) 2.718281828459045
  • i (the square root of negative one)
  • The Golden Mean
  • Fibonacci numbers
Here is a set of numbers, a mathematical equation actually, involving Pi that will blow your geek mind!  Ready for it?

π x 1337%=42

I told you that your mind would be blown away!!
If your mind is not blown then you may need to check your geek cred!

I love math, I love CAD, I love design and I love Pi.  I also enjoy music.  Here is a link to a song about Pi.  You may recognize the tune the song is set to.  The original version went viral some time ago.



Today being Pi day, there are several ways that one could celebrate.  If you are stumped and are looking for ideas check out the official Pi Day website:

http://www.piday.org
http://en.wikipedia.org/wiki/Pi_Day

By the way, March 14th (aka Pi Day) is also Albert Einstein’s birthday!  Again, behold the power of Math (and Pi)!!

Need Pi gear?  Thinkgeek.com has a lot of great Pi themed wears!

http://www.thinkgeek.com/tshirts-apparel/unisex/sciencemath/cc38/?srp=8
http://www.thinkgeek.com/homeoffice/lights/ac3f/?srp=12
http://www.thinkgeek.com/b61a?srp=1
http://www.thinkgeek.com/e616?srp=4

Now for some sad news about Pi.

There is a movement amongst some math elitist that have a hatred for our beloved Pi.  They are the Tauists.  Yes, this group wants to rid the world of Pi and replace it with the number Tau!!  (http://tauday.com/)
In short, these unbelievers (heretics) feel that the number Pi is not good enough.  That since many arc based formulas (especially the Circle Constant) include 2 π, that π itself is not adequate.  That the number used should be 2 π where 2 π=Tao or 6.28318.  The argument is that a circle is defined as all of the points equidistant from a single point (more or less) and that distance is the radius of the circle, not the diameter.  Since the radius is often known, many formulas replace Pi with 2r (where r is the radius of the circle.)  These nonbelievers would say that the Circle Constant should be written:

Circumfrence=2 π(radius)

Therefore replace the number 2 and the number π with the number Tao (they even desecrated the symbol for the number π with their own abomination of a symbol.)
No.

They are wrong and should probably be burned at the stake.
The Circle Constant (a true and wonderful number) depends on the diameter not the radius.  The argument for “needing” to simplify π by making it more complex is absurd.

Enough of that.  How will you celebrate Pi day?




Pi to 1120 decimals:

3.1415926535 8979323846 2643383279 5028841971 6939937510 5820974944 5923078164 0628620899 8628034825 3421170679 8214808651 3282306647 0938446095 5058223172 5359408128 4811174502 8410270193 8521105559 6446229489 5493038196 4428810975 6659334461 2847564823 3786783165 2712019091 4564856692 3460348610 4543266482 1339360726 0249141273 7245870066 0631558817 4881520920 9628292540 9171536436 7892590360 0113305305 4882046652 1384146951 9415116094 3305727036 5759591953 0921861173 8193261179 3105118548 0744623799 6274956735 1885752724 8912279381 8301194912 9833673362 4406566430 8602139494 6395224737 1907021798 6094370277 0539217176 2931767523 8467481846 7669405132 0005681271 4526356082 7785771342 7577896091 7363717872 1468440901 2249534301 4654958537 1050792279 6892589235 4201995611 2129021960 8640344181 5981362977 4771309960 5187072113 4999999837 2978049951 0597317328 1609631859 5024459455 3469083026 4252230825 3344685035 2619311881 7101000313 7838752886 5875332083 8142061717 7669147303 5982534904 2875546873 1159562863 8823537875 9375195778 1857780532 1712268066 1300192787 6611195909 2164201989 3809525720 1065485863 2788659361 5338182796 8230301952 0353018529 6899577362 2599413891 2497217752 8347913151 5574857242 4541506959

You are welcome.

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