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Quantum Jim (610382)

Quantum Jim
  jfcst24@yDEGASahoo.com minus painter
http://nemo.dev.java.net/

About

I'm an E-Phys [wikipedia.org] major at Pitt [pitt.edu]. I contribute to the WikiWikiWeb [c2.com]. Check out my space profile [myspace.com] and research [pitt.edu] blogs [blogspot.com].

How I use /.

My FOF ratings help control moderation to a degree. I mainly use the interactive features here to practice writing - my skills are very weak right now.

Quotes

My willpower was set to false. Not equal to. -Xander

Audentes fortuna juvat -Virgil

I haven't decided on the style of Girly t I want... -Dave Toole

Journal of Quantum Jim (610382)

My /. fortune is mistaken

[ #169415 ]
Tuesday April 17 2007, @02:43AM
Math

My /. fortune was:

(1) X=Y ; Given
(2) X^2=XY ; Multiply both sides by X
(3) X^2-Y^2=XY-Y^2 ; Subtract Y^2 from both sides
(4) (X+Y)(X-Y)=Y(X-Y) ; Factor
(5) X+Y=Y ; Cancel out (X-Y) term
(6) 2Y=Y ; Substitute X for Y, by equation 1
(7) 2=1 ; Divide both sides by Y
-- "Omni", proof that 2 equals 1

However, you can only cancel out the (X-Y) if X != Y because if they are equal then the expression is zero! Indeed, the rest of the steps can be left, so you end up with:

2(x-y) = (x-y)
0 = 0

Friends don't let friends divide by zero!

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  • long time no see... how's the BJJ going?
    • Hey, BJJ is going good. I got promoted to blue, won a few tournaments, and am half way to purple I think. How's the krav maga going along? I have been pretty busy and haven't been around for a while. Hopefully I have some more free time now...
      • Sounds great! Krav Maga is going fine, except I have this finger injury that is really cramping my style :-( I hope it's better in time for grading in June...
        • Good luck with your grading. I always buddy-tape injured fingers and toes. Even when not training, the buddy tape helps it heal faster.