BringBackFergy Posted July 8, 2014 Posted July 8, 2014 Does 2+2 always equal 4? Please explain and show your work.
The Poojer Posted July 8, 2014 Posted July 8, 2014 (edited) yes and... Edited July 8, 2014 by The Poojer
The Wiz Posted July 8, 2014 Posted July 8, 2014 I had a math teacher in college that spent a 2 hour lecture explaining how 2+2=trumpet Seriously
Mark Vader Posted July 8, 2014 Posted July 8, 2014 Yes, it always equals 4. As in how many Super Bowl Championships the Bills should have. Understand now?
BringBackFergy Posted July 8, 2014 Author Posted July 8, 2014 I can appreciate you gentlemen (and I use that term loosely) making conclusory statements that 2+2 should always equal 4, but there have to be instances where the equation can equal something other than 4...I don't buy the simple explanation as you were taught in 2nd grade. Polls are not appropriate because you need to show your work...where the heck is OCinBuffalo or DCTom?? I want to see a proof.
boyst Posted July 8, 2014 Posted July 8, 2014 I can appreciate you gentlemen (and I use that term loosely) making conclusory statements that 2+2 should always equal 4, but there have to be instances where the equation can equal something other than 4...I don't buy the simple explanation as you were taught in 2nd grade. Polls are not appropriate because you need to show your work...where the heck is OCinBuffalo or DCTom?? I want to see a proof. racist.
ICanSleepWhenI'mDead Posted July 8, 2014 Posted July 8, 2014 . . . I want to see a proof. http://tutorial.math.lamar.edu/pdf/Laplace_Table.pdf f (t)=L-1 F(s) F(s)=L f (t) f (t)=L-1 F(s) F(s)=L f (t) {}{}{}{}1.1 3. tn, 5. t 1 2.eat s s-a 1 G(p+1) sp+1 n=1,2,3,K n! 4. tp ,p>-1 sn+1 p 6. tn-12, n=1,2,3,K 22 1×3×5L(2n-1) p 2s3 a 8. tsin(at) 2 10. (s2 +a2) 2a3 sin(at)-atcos(at) 2 12. 2n sn+1 s 7. sin(at) s2 +a2 2as cos(at) tcos(at) 2 9. 11. 13. 15. 17. 19. 21. 23. 25. 27. 29. 31. 33. 35. 37. s2 +a2 s2 -a2 (s2 +a2) (s2 +a2) 2as2 sin(at)+atcos(at) 2 (s2 +a2) s(s2 -a2) cos(at)-atsin(at) 2 14. s(s2 +3a2) cos(at)+atsin(at) 2 (s2 +a2) sin(at+b) ssin(b)+acos(b) 16. (s2 +a2) scos(b)-asin(b) s2 +a2 sinh(at) a 18. cos(at+b) cosh(at) s eat sin(bt) eat sinh (bt ) tneat, n=1,2,3,K u (t)=u(t-c) b s-a 2 20. eat cos(bt) 2 s2 -a2 s2 +a2 s2 -a2 (s-a) +b2 (s-a) +b2 b s-a 22. 24. F(s) ts0s eat cosh (bt ) f (ct ) 2 (s-a) -b2 n! (s-a)n+1 2 (s-a) -b2 1 Êsˆ c F Á c ̃ 26. u (t)f (t-c) e-csF(s) 28. u (t)g(t) c e-cs s d (t - c) Dirac Delta Function Ë ̄ e-cs Heaviside Function cc ectf(t) F(s-c) 30. tnf(t), n=1,2,3,K e-csL{g(t+c)} (-1)nF(n)(s) 1 f (t) Ú• F(u)du 32. Út f (v)dv Út 0 f (t-t)g(t)dt f¢(t) f(n)(t) F(s)G(s) sF(s)- f (0) 34. f (t+T)= f (t) 36. f¢(t) ÚT e-st f (t)dt 0 1-e-sT s2F(s)-sf (0)- f¢(0) snF(s)-sn-1 f (0)-sn-2 f¢(0)L-sf(n-2)(0)- f(n-1)(0) Table Notes 1. This list is not a complete listing of Laplace transforms and only contains some of the more commonly used Laplace transforms and formulas. 2. Recall the definition of hyperbolic functions. et +e-t et -e-t cosh(t)= 2 sinh(t)= 2 3. Be careful when using “normal” trig function vs. hyperbolic functions. The only difference in the formulas is the “+ a2” for the “normal” trig functions becomes a “- a2” for the hyperbolic functions! 4. Formula #4 uses the Gamma function which is defined as G(t)=Ú•e-xxt-1 dx 0 If n is a positive integer then, G(n+1)= n! The Gamma function is an extension of the normal factorial function. Here are a couple of quick facts for the Gamma function G(p+1)= pG(p) p(p+1)(p+2)L(p+n-1)= G(p+n) G(p) GÊ1ˆ= p Á ̃ Ë2 ̄ therefore, 2+2=4
DC Tom Posted July 8, 2014 Posted July 8, 2014 Does 2+2 always equal 4? Please explain and show your work. Not on an old Pentium chip, it doesn't.
Chef Jim Posted July 8, 2014 Posted July 8, 2014 I can appreciate you gentlemen (and I use that term loosely) making conclusory statements that 2+2 should always equal 4, but there have to be instances where the equation can equal something other than 4...I don't buy the simple explanation as you were taught in 2nd grade. Polls are not appropriate because you need to show your work...where the heck is OCinBuffalo or DCTom?? I want to see a proof. !@#$ing lawyers.
Mark Vader Posted July 8, 2014 Posted July 8, 2014 only if Big Brother wants us to think so What does a reality show on CBS have to do with this?
BringBackFergy Posted July 8, 2014 Author Posted July 8, 2014 http://tutorial.math.lamar.edu/pdf/Laplace_Table.pdf There is an error in your proof...I'll let you find it. Not on an old Pentium chip, it doesn't. I always figured you for a slide rule. !@#$ing lawyers. I don't think anyone can disprove that theory.
Optometric Insight Posted July 8, 2014 Posted July 8, 2014 What does a reality show on CBS have to do with this? I was more referring to 1984 by George Orwell
Nanker Posted July 8, 2014 Posted July 8, 2014 There are 10 kinds of people in this world. Those that understand binary, and those that don't.
thebandit27 Posted July 8, 2014 Posted July 8, 2014 I don't know about 2 + 2, but I did have a professor in Engineering school provide proof that women are evil. It was derived like this: I think we'd all agree that being with a women is a product of time and money (vis-a-vis, nobody that is too broke or too busy can court a women), therefore: Women = Time x Money And as we all know, Time IS Money, therefore: Women = Money x Money = (Money)^2 I'm sure you've all heard that "Money is the root of evil", therefore (If Money = [Evil]^[1/2]): Women = ([Evil]^[1/2])^2 Women = Evil
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