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  1. J

    Solving 2 inequalities with imaginary numbers?

    I did that. he gave us a couple test examples, and they worked. ALl we are to do is setup the main part of the program, and send the matrices to the functions.
  2. J

    Solving 2 inequalities with imaginary numbers?

    i did tell you how i attempted it. I put it in the program, gave it the function, and that is what i got? A = matrix of: 0 0 0 0 B = matrix of: 1 -1 0 3 a = matrix: -2 4 b = matrix: -1 7 and i solved for x,y . (which is done by passing the matrices to the functions that...
  3. J

    Solving 2 inequalities with imaginary numbers?

    well, problem is, my work, is done by the computer. my assignment is to do write the main program, use matrices, and get the answer, with given functions (that teacher provided). all we have to do, is pass the functionthe matrices, and get the PA=LU factorization, and the solve using front and...
  4. J

    Solving 2 inequalities with imaginary numbers?

    i should say that the title is wrong, not inwqualities
  5. J

    Solving 2 inequalities with imaginary numbers?

    I have 2 equations, imaginary ones, and 2 unknowns....trying to solve for them..but the answer i got, works with one, but not the other: i*Z1 - i*Z2 = -2 - i Z1 + 3i*Z2 = 4 + 7i where i is the imaginary number, and Z1 and Z2 are the 2 unknowns the answer i got: Z1 : 1.33333 +...
  6. J

    Strong primality test ?

    ANYONE? bump one last time as its due tomorrow and im still stuck
  7. J

    Planar graphs with minimum degree

    so maybe I can use the fact that if I can draw a geometric dual graph, then it is planar ... so I Just have to prove that I can't draw one? man, i HATE proofs
  8. J

    Planar graphs with minimum degree

    ok, here is the question: Let G be a graph with minimal degree \delta(G) = 5, but suppose there exists only one vertex v\in V_{G} such that d(v) = \delta(G). Prove that G is not planar. ok, i can do this visually. if i draw the vertex v and its edges to its points, and then draw points...
  9. J

    Strong primality test ?

    bump ... anyone?
  10. J

    Strong primality test ?

    strong primality test ... ?? ok, bear with me ... we learned weak primality tests (given n and base a,::: a^(n-1) mod n ::: if it does not equal 1, then its composite, if it equals 1, then MAYBE prime) ... then we learned strong primes .... think of n-1 = m2^k when m is odd. test ::: a^m...
  11. J

    Graph theory: quick question(s)

    another question. what is the independent number/set ? http://mathworld.wolfram.com/IndependentSet.html looking at that, and a problem from my homework which the answer is 4: http://www.nevada.edu/%7Ebaragar/courses/MAT351ex2sample.pdf [Broken] problem # 1b finding the...
  12. J

    100 animals 100 dollars? easy? I thought so.

    i had a different answer 4 cows = $40 24 pigs = $24 72 chickens = $36 =============== 100 animals at $100
  13. J

    100 animals 100 dollars? easy? I thought so.

    at least for my answer and what he wrote above (.5) which i took as 50 cents
  14. J

    100 animals 100 dollars? easy? I thought so.

    its not nickels, but $0.50
  15. J

    100 animals 100 dollars? easy? I thought so.

    nope ... the number of chickens is not a multiple of 20
  16. J

    100 animals 100 dollars? easy? I thought so.

    i have the answer! hint: x (cows) can be reasonably guessed. then you go from there (this is how i did it. trial and error.lol) only problem is, if you have to show work in terms of math, im not sure. i just tried out various values. took me a couple minutes.
  17. J

    100 animals 100 dollars? easy? I thought so.

    does the total cost have to be $100 also??
  18. J

    Graph theory: quick question(s)

    oh ok, so a subgraph can contain no edges .... but that is not induced...in order to be induced, it has to be of the original vertex set with edges (that belonged to the edge set of the original graph) ? its not a complete graph?
  19. J

    Physics vs. Math

    tell me about it. im pretty decent in math, but the professors (im at UNLV) made it to where i hated physics and i havent learned a thing. i know VERY BASIC physics principles and that is about it.
  20. J

    Who's who among american hs students

    clearly a ripoff, but my wife got it, and that is how she found out about the high school she went to (Community College High School) ...... which is where she got 2 years of her college work done by the time she finished high school ....
  21. J

    Graph theory: quick question(s)

    what's the difference between a subgraph and an induced subgraph? looking here: http://mathworld.wolfram.com/InducedSubgraph.html how is the figure K8 ? isn't that K10 ?? also, what is a spanning subgraph?
  22. J

    Clock/modular arithmetic anyone?

    anyone familiar with this, along with some RSA and calculating large powers with modular arithmetic (im lost at the name of it currently). i have attached the test that I took last week ... he allows us to take home the exact same test home, and do it again, and he combines the grades ...
  23. J

    Philosophy: Should we eat meat?

    that argument is weak ... if you have kids, then what gives you the right to tell them what they can and cant do, etc? its not saying that anyone can and cant do, but its the basic rights of everyone to be able to live and do as they please within a set standard ..... a policeman stopping...
  24. J

    Philosophy: Should we eat meat?

    if people choose to not eat meat, that is there choice...but once they start trying to preach to me, then thats it .... i eat meat and im proud of it (i like my steaks bloody rare) and quite personally, i think PETA goes way to far with its tactics ....
  25. J

    How much

    $15/mo
  26. J

    How much

    oh, cuz i got 30GB of bandwidth on my domain, of which i hardly ever use up (unless i host large vids and songs) .... too bad you couldnt move over some of it, hehe
  27. J

    Some more basic homework help

    so whats the mass? 22.5 ??
  28. J

    Some more basic homework help

    ehh? is the kinetic energy formula: K=(1/2)mv^2 ? and still lost on this part: since E = 22.5 eV << the positron rest mass (0.5 MeV). The mass is equivalent to the electron mass.
  29. J

    Some more basic homework help

    was reading the chapter..and they had a section on circulating charges ... it had an equation relating qvB to centripetal acceleration of: qvB=m(v^2)/r problem is, in the question, to find r, we have to know v, which isnt given ?? and also, dont know the mass ? grrrrr any help!1??!
  30. J

    Book for physics

    sounded like me in my first eng physics class...VERY poor instructor, coupled with a poor physics book i got a couple books, but unfortunately, didnt really help me much. luckily, i got by ... my scores averaged at most 45%, but with huge curve, was a B ..... to me, that was a sign of...
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