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  1. 03-17-2009, 06:30 PM #1
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    anyone good with mathematica????

    i'm trying to integrate this for physics homework...and admittedly i'm VERY rusty with mathemtica and when i put it in all i get is the whole thing spit back at me.....
    a = .529*10^-10

    f[x_] := (1/2 a)^(3/2)*(2 - (x/a)) exp[(-x/2 a)]

    n[integrate[(f[x_]^2*(x^2)), {x, 0, 4 a}]]


    anyone know mathematica well???
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  2. 03-17-2009, 06:37 PM #2
    Surreal
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    Aren't you a dumb nerd!
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  3. 03-17-2009, 06:39 PM #3
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    Quote Originally Posted by RuhlFreak55 View Post
    i'm trying to integrate this for physics homework...and admittedly i'm VERY rusty with mathemtica and when i put it in all i get is the whole thing spit back at me.....
    a = .529*10^-10

    f[x_] := (1/2 a)^(3/2)*(2 - (x/a)) exp[(-x/2 a)]

    n[integrate[(f[x_]^2*(x^2)), {x, 0, 4 a}]]
    The answer is 4.
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  4. 03-17-2009, 06:39 PM #4
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    lol, im so happy i got all my math out of the way, sorry man, cant help ya there. once i take the tests, i pretty much forget it all
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  5. 03-17-2009, 06:41 PM #5
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    Good god lol, i thought you were going to ask what 8x8 is.... Fuvk that im to dumb to even want to know the answer..
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  6. 03-17-2009, 06:42 PM #6
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    Quote Originally Posted by BuffedGuy View Post
    The answer is 4.
    However i was about to say 4....
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  7. 03-17-2009, 06:48 PM #7
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    it's a probability it can't be 4
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  8. 03-17-2009, 06:49 PM #8
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    Quote Originally Posted by MAD MATT View Post
    However i was about to say 4....
    So was I...damn it.
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  9. 03-17-2009, 06:49 PM #9
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    Quote Originally Posted by BuffedGuy View Post
    The answer is 4.
    if that is in fact correct...(provided you didnt google the answer)

    thats good shit Buff!
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  10. 03-17-2009, 07:50 PM #10
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    The answer is... FOUR??
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  11. 03-17-2009, 08:11 PM #11
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    i can do the nine times table with my hands.
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  12. 03-17-2009, 08:15 PM #12
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    *shakes head in despair*
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  13. 03-17-2009, 08:39 PM #13
    Surreal
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    Quote Originally Posted by RuhlFreak55 View Post
    *shakes head in despair*
    You know that Indian trekkie girl I recommended to you? Not sure if she'll cook or clean for you, but I'm prety sure she can do that problem by hand. Maybe you should give her a shot!
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  14. 03-17-2009, 10:01 PM #14
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    Quote Originally Posted by RuhlFreak55 View Post
    it's a probability it can't be 4
    OK. Then it is 4%.
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  15. 03-17-2009, 10:05 PM #15
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    the answer is 7.396
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  16. 03-17-2009, 10:15 PM #16
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    I thought the answer was

    36

    24

    36
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  17. 03-17-2009, 10:31 PM #17
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    Quote Originally Posted by prone2rage View Post
    I thought the answer was

    36

    24

    36
    That's ALWAYS the answer !!!
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