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anonymous

  • 5 years ago

Difference equations

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  1. anonymous
    • 5 years ago
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  2. anonymous
    • 5 years ago
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    need help with checking what I have

  3. amistre64
    • 5 years ago
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    5 pages?

  4. anonymous
    • 5 years ago
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    yes! just want to check a couple and do one

  5. anonymous
    • 5 years ago
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    do you know how to do #1...need to check it

  6. anonymous
    • 5 years ago
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    http://www.aw-bc.com/ggts/ Ch.12 for reference

  7. amistre64
    • 5 years ago
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    linear would be degree 1 that I am aware of but let me check the material

  8. anonymous
    • 5 years ago
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    I have c as linear

  9. amistre64
    • 5 years ago
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    c and d are both linear

  10. amistre64
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    d is not linear...

  11. amistre64
    • 5 years ago
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    its got rationals in it that make it go haywire

  12. anonymous
    • 5 years ago
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    ok right was seeing y sub n as exponent in denominator not just constant : (

  13. anonymous
    • 5 years ago
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    gonna graph it...confused with homo and nonhom..have a and b as homo...had c too but changed

  14. amistre64
    • 5 years ago
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    if you reform d it become 1 + y^2/2y and thats just a curvey mess

  15. amistre64
    • 5 years ago
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    homo or nonhomo; you gotta pick all that apply? or just one?

  16. anonymous
    • 5 years ago
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    all that apply -3 parts

  17. amistre64
    • 5 years ago
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    the order is the difference beteen "n"s

  18. amistre64
    • 5 years ago
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    a = 2nd order

  19. amistre64
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    b,c,d are all 1st orders

  20. anonymous
    • 5 years ago
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    got that one...b-2 c- 1

  21. amistre64
    • 5 years ago
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    b = n, n+1 .... a difference of 1; 1st order

  22. anonymous
    • 5 years ago
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    ok gotcha

  23. amistre64
    • 5 years ago
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    a = hom, its got a zero on the right hand side :)

  24. anonymous
    • 5 years ago
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    understand that

  25. anonymous
    • 5 years ago
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    looked at wrong checks only had a as homo just wanted to check that

  26. amistre64
    • 5 years ago
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    i think only d is nonhomo

  27. amistre64
    • 5 years ago
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    homogeneity aint my strength lol..... i guess you just need an eye for it.

  28. anonymous
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    don't understand other property other than =0 to make it hom...

  29. anonymous
    • 5 years ago
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    LOL!

  30. anonymous
    • 5 years ago
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    I have 2a need 2b

  31. anonymous
    • 5 years ago
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    i'll try and figure2-4...how about 5 got 6 ...loved that one

  32. amistre64
    • 5 years ago
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    you need 5?

  33. amistre64
    • 5 years ago
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    i as trying to determine what a "complete" solution meant :)

  34. anonymous
    • 5 years ago
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    yes

  35. anonymous
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    ok that is cool ; )

  36. anonymous
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    didn't want to weigh you down...

  37. amistre64
    • 5 years ago
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    B(n+1) = ....

  38. amistre64
    • 5 years ago
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    what level mathis this stuff anyways :)

  39. amistre64
    • 5 years ago
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    B(n+1) = (.06)Bn - 25,000...so far

  40. anonymous
    • 5 years ago
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    Precalculus...real-world

  41. amistre64
    • 5 years ago
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    B(n+1) = (.06)Bn - 25,000(.03)n-1

  42. amistre64
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    pre calc real world eh...... you must be going to harvard or something lol

  43. amistre64
    • 5 years ago
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    thats almost right in the equation...

  44. anonymous
    • 5 years ago
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    i know right...UIUC in Illinois...sad part is 1-credit math module not even full course..smh

  45. amistre64
    • 5 years ago
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    any idea how to get the 25000 to start at (times 1) :) Bn+1 = (.06)Bn - 25,000(.03)

  46. amistre64
    • 5 years ago
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    B(n+1) = (.06)Bn - 25,000(1+.03).....

  47. amistre64
    • 5 years ago
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    B(n+1) = (.06)Bn - 25,000 + 25,000(.03)^n something like this

  48. amistre64
    • 5 years ago
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    B(n+1) = (.06)Bn -25,000(1.03)^(n-1)

  49. anonymous
    • 5 years ago
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    http://www.docstoc.com/docs/18298713/Planning-for-retirement

  50. amistre64
    • 5 years ago
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    i got it....im sure I do :)

  51. amistre64
    • 5 years ago
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    its pretty much a loan in a loan....

  52. amistre64
    • 5 years ago
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    at B0; n=0

  53. amistre64
    • 5 years ago
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    n=1 lol....thats it :)

  54. amistre64
    • 5 years ago
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    I got the balance increaseing at .06 each time; then subtract that 25000(+.03 for interest) for the next few years

  55. amistre64
    • 5 years ago
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    you agree?

  56. anonymous
    • 5 years ago
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    I'm pluggin in calc. and I'm missing something

  57. amistre64
    • 5 years ago
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    B(n+1) = (.06)Bn -25,000(1.03)^(n-1) the first year we need a "0" to make that (1.03) = 1

  58. amistre64
    • 5 years ago
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    \[B_{n+1}=(.06)B_{n} - 25000(1.03)^{n-1}\]

  59. amistre64
    • 5 years ago
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    de we start this from n=0 or n=1?

  60. anonymous
    • 5 years ago
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    got that let me keep trying

  61. anonymous
    • 5 years ago
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    0

  62. anonymous
    • 5 years ago
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    for the power we need n =1 so 1-1=0 and anything to 0 power is 1

  63. amistre64
    • 5 years ago
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    correct

  64. amistre64
    • 5 years ago
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    im writing it into a program :)

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  65. anonymous
    • 5 years ago
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    neat....iterations inputed one at a time? not working

  66. amistre64
    • 5 years ago
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    havent programed it ALL yet lol..let me give this a test run

  67. amistre64
    • 5 years ago
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    getting warmer :)

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  68. amistre64
    • 5 years ago
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    it should be 1.06 ...not .06

  69. amistre64
    • 5 years ago
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    no....thats aint it ...

  70. anonymous
    • 5 years ago
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    292, 250 for n=1

  71. amistre64
    • 5 years ago
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    B+B(.06) = B(1.06)

  72. amistre64
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    Balance + 6% :)

  73. amistre64
    • 5 years ago
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    293,000 should be it

  74. amistre64
    • 5 years ago
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    300000(1.06)-25000 = 293000

  75. amistre64
    • 5 years ago
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    this is it ;)

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  76. amistre64
    • 5 years ago
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    forogt to change the "dressing" to 1.06 lol

  77. amistre64
    • 5 years ago
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  78. amistre64
    • 5 years ago
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    its good to go ;)

  79. amistre64
    • 5 years ago
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    itll last 15 years :)

  80. amistre64
    • 5 years ago
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    programming I can do ;)

  81. amistre64
    • 5 years ago
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    html and javascript, we can do so much together :)

  82. anonymous
    • 5 years ago
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    that is Awesome...learned a lilt programming-html but you are GREAT

  83. amistre64
    • 5 years ago
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    taught meself that too ;)

  84. anonymous
    • 5 years ago
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    never thought to use it...just the calc...thanks!

  85. amistre64
    • 5 years ago
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    libraries shuttin down, good luck with the rest of it :)

  86. anonymous
    • 5 years ago
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    ok thanks...what state are you in

  87. amistre64
    • 5 years ago
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    florida ;)

  88. anonymous
    • 5 years ago
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    Cool! just moved to IL from SC...ttyl

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