Whenever I can't sleep I do math equations
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thread starter HolyMythos May 04 2009
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 | More specifically, I lay in bed trying to find out equations for something I normally wouldn't use an equation for. For example, just now while trying to sleep I thought of this: N^2 = (N-1)^2 + (2N-1) Pick a number, it works. Let's use 7. 7^2 = (7-1)^2 + (2(7)-1) 49 = 6^2 + (14-1) 49 = 36 + 13 49 = 49 I don't know why I think of this, I just do. It's how I fall asleep. Does anyone else ever do this, or am I just crazy? |
KingDragon 05/04/09
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| Maybe you want to be a mathematician in the future lol....or you're just crazy xD |
HolyMythos 05/04/09
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| I don't know why I do it, or even how I get to thinking about it. No one in their right mind would even use this. All it tells you is that if you know the square of one number, you can find the square of the next number by adding (2N-1) to the square. How I figure this out I have no idea. |
Lordofrage 05/04/09
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 | HolyMythos said: "I don't know why I do it, or even how I get to thinking about it. No one in their right mind would even use this. All it tells you is that if you know the square of one number, you can find the square of the next number by adding (2N-1) to the square. How I figure this out I have no idea." someone is either ready for college or already in college. |
HolyMythos 05/04/09
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| Lordofrage said: " someone is either ready for college or already in college." Already in college, yet I failed my Calc 2 class... hard. |
unclepain 05/04/09
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| HolyMythos said: "I don't know why I do it, or even how I get to thinking about it. No one in their right mind would even use this. All it tells you is that if you know the square of one number, you can find the square of the next number by adding (2N-1) to the square. How I figure this out I have no idea." I do. And write poetry! |
cupc4ke 05/04/09
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| HolyMythos said: " Already in college, yet I failed my Calc 2 class... hard." Oh man, I had to take it twice. |
KingDragon 05/04/09
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| God is sending you signals..you ought to be a mathematician..go pursue your new career*is serious*. |
Lordofrage 05/04/09
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| HolyMythos said: " Already in college, yet I failed my Calc 2 class... hard." yea? what college are you in? btw, calc 2 is like calc bc in high school right? and calc 1 is like ab right? or is it diff? |
cupc4ke May 04 2009
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| Lordofrage said: " yea? what college are you in? btw, calc 2 is like calc bc in high school right? and calc 1 is like ab right? or is it diff?" It's completely different. High school calc AB/BC are both calculus 1. High school calculus BC is just a faster pace and covers more material than high school calculus AB. |
oneplusone 05/04/09
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| "I lay in bed trying to find out equations for something I normally wouldn't use an equation for." "Already in college, yet I failed my Calc 2 class" You have got to be the stupidest college student I know. Thats not saying much though. For N^2 = (N-1)^2 + (2N-1) you DO use an equation... the expansion of (a-b)^2 which equals a^2 - 2ab + b^2. Fool. Plus you didnt even need the second part (2N -1) in brackets at all, youre just adding them to the general equation anyway. |
HolyMythos 05/04/09
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| oneplusone said: ""I lay in bed trying to find out equations for something I normally wouldn't use an equation for." "Already in college, yet I failed my Calc 2 class" You have got to be the stupidest college student I know. Thats not saying much though. For N^2 = (N-1)^2 + (2N-1) you DO use an equation... the expansion of (a-b)^2 which equals a^2 - 2ab + b^2. Fool. Plus you didnt even need the second part (2N -1) in brackets at all, youre just adding them to the general equation anyway." You call me the fool. (a-b)^2 does equal a^2 - 2ab + b^2, HOWEVER in my equation I never once have (a-b)^2. I have (a-1)^2. Fool. |
oneplusone 05/04/09
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| HolyMythos said: " You call me the fool. (a-b)^2 does equal a^2 - 2ab + b^2, HOWEVER in my equation I never once have (a-b)^2. I have (a-1)^2. Fool." Sigh, "a" and "b" are just pronumerals that represent any value. In your case, "a" is "a" and "b" is "1". So we do: a^2 - 2ab + b^2, and then we sub in the values a and 1: a^2 - 2a + 1 |
CeruleanMuse 05/04/09
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| N^2 = (N-1)^2 + (2N-1) N^2=[(N^2)-(2N)+1] + 2N-1 N^2=N^2-2N+2N+1-1 N^2=N^2 So pretty much what you're doing is a quadratic minus the part that's not ax^2 to get to the original number squared... |
umisushi 05/04/09
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| this reminds me of 2NE1 which is the girl version of Big Bang =) |
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