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10-07-2009, 05:37 PM   #4891
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Re: Random Chit Chat

Quote:
 Originally Posted by j03 The inversion of a 3x3 Matrix has to be one of the most tedious things ever.
Are you calculating determinants?
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 10-07-2009, 05:40 PM #4892 ~~~~~~~~   Join Date: Jan 2005 Location: Wales Posts: 5,556 Re: Random Chit Chat Determinants isnt too bad, but calculating the co-factors is a pain :P. My Calculator can do it, but the teachers wants to see the working (he know's of my ways :P) __________________
 10-07-2009, 05:42 PM #4893 Guru     Join Date: Jan 2008 Location: U.S. Posts: 7,841 Re: Random Chit Chat I don't know co-determinants. In fact, the only thing I bothered to learn from matrices are determinants. I needed them to calculate cross products.
 10-07-2009, 05:48 PM #4894 ~~~~~~~~   Join Date: Jan 2005 Location: Wales Posts: 5,556 Re: Random Chit Chat Oops, I meant co-factors. Well, if you had a matrix: |1|2|4| |6|3|9| = A |2|5|3| then the det(A) would be 1(9-45)-2(18-18)+4(60-6). To find the co-factors you need to do something similar... you end up with another matrix though. The co-factor of 1 in matrix A would be: (3*3)-(5*9), the co-factor of 2 would be (6*3)-(9*2) and so on for 1,2,4,6,3,9,2,5 and 3. ANYWAY. It's just annoying :P
 10-07-2009, 08:57 PM #4895 Golden Master     Join Date: Mar 2006 Posts: 5,574 Re: Random Chit Chat Matrixes are the worst things ever. And to thing I want to minor in math....... __________________ AMD Athlon 64X2 4200+, 2 GB ram, 2 TB HDD, Ubuntu+SAMBA ♫ Lenovo T410, i5@ 2.4 GHz, 4 GB ram, 7
10-07-2009, 09:10 PM   #4896
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Re: Random Chit Chat

Quote:
 Originally Posted by Rubber314Chicken Matrixes are the worst things ever. And to thing I want to minor in math.......
Minor in math isn't bad. I'm getting mine next semester. This is what you need (at least that's what Wichita State University asks from me)

Calc1
Calc2
Calc3
Diff Eq
Any class past Diff Eq

 10-07-2009, 09:18 PM #4897 Daemon Poster     Join Date: Jul 2009 Posts: 861 Re: Random Chit Chat A friend of my dad's told me he's going to give me a 1985 Ford F-150 4x4. He's got no use for it, rather give it away to a family friend if I help him build his new house. It runs through a fair bit of oil though and only gets 14MPG. Still, trade a truck for help building a house next summer is a sweet deal. Ever since I've been 11, I've wanted that truck, lol. 200000km's on it, Here's a few shots what the truck looks like. I havnt had time to grab any actual pictures, but it's exact same as this. In almost as good of shape too.
 10-07-2009, 09:48 PM #4898 Fully Optimized     Join Date: Apr 2009 Posts: 3,753 Re: Random Chit Chat ^ Awesome! "free" stuff is nice __________________ RD-PC -//- i7 950 // Evga x58 SLI // 3x2 OCZ PC3-12800 // 2x Evga GTX470 // Corsair HX850 // SilverStone TJ07
 10-07-2009, 09:56 PM #4899 Daemon Poster     Join Date: Jul 2009 Posts: 861 Re: Random Chit Chat Yeah, I'm trying to decide what I should do. I got my new Taurus thats good daily driver, but I really want to insure and drive the truck. Insurance for a brand new driver is crazy expensive. I gotta figure out which I want more. Which will probably be the truck. Would make an excellent hunting/mud truck, and that's something I'm in need of. Our truck is 2x4 so its not great for offroad. But gas is going to be a little high. I'll probably give the car to my dad (it'll still pass certification) to drive around, which I can borrow most of the time, and invest in insuring and lifting the truck.
10-07-2009, 09:59 PM   #4900
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Join Date: Mar 2006
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Re: Random Chit Chat

Quote:
 Originally Posted by JogaBonito1502 Minor in math isn't bad. I'm getting mine next semester. This is what you need (at least that's what Wichita State University asks from me) Calc1 Calc2 Calc3 Diff Eq Any class past Diff Eq
hmm... AP calc BC is basically Calc 2, right?
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