Wish me luck!

Discussion in 'Community Discussion' started by theman, Nov 5, 2007.

  1. theman macrumors 6502a

    Joined:
    Jul 26, 2007
    #1
    I'm going in for my math midterm tomorrow, it's all about directional derivatives, gradients, level surfaces, minimums/maximums/saddle points -- FxxFyy-Fxy^2<0 (hey, I actually know that one!), double integrals, areas, volumes, triple integrals, areas/volumes of polar functions, and all that fun stuff. Hopefully I don't miss any! :)

    Now if only I could get off of macrumors and start studying! I don't know how to do any of it yet! :D

    I could just start paying attention in class, but that's no fun at all...


    Peace.
     
  2. Jaffa Cake macrumors Core

    Jaffa Cake

    Joined:
    Aug 1, 2004
    Location:
    The City of Culture, Englandshire
    #2
    That all means nothing to me. :p

    But good luck for tomorrow – now get off of here and do some studying!
     
  3. theman thread starter macrumors 6502a

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    Jul 26, 2007
    #3
    ahh, you do know what areas and volumes are. right? :eek:
     
  4. Jaffa Cake macrumors Core

    Jaffa Cake

    Joined:
    Aug 1, 2004
    Location:
    The City of Culture, Englandshire
    #4
    Areas are the rectangular bits painted in front of the goals on a football pitch, and volumes are what DVDs come in?

    I went to art college. ;)
     
  5. XIII macrumors 68040

    XIII

    Joined:
    Aug 15, 2004
    Location:
    England
    #5
    Phew. At least you know those ones.
     
  6. theman thread starter macrumors 6502a

    Joined:
    Jul 26, 2007
    #6
    hey, i didn't even think of either of those definitions! :p
     
  7. gkarris macrumors 604

    gkarris

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    Dec 31, 2004
    Location:
    "No escape from Reality..."
    #7

    FxxFyy-Fxy^2<0 = Zzzzzzzzzzzzzz...
     
  8. Doctor Q Administrator

    Doctor Q

    Staff Member

    Joined:
    Sep 19, 2002
    Location:
    Los Angeles
    #8
    Math is much more fun than MacRumors!

    Of course, talking about math at MacRumors is more fun than either alone!!
     
  9. tracetritt macrumors member

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    Jun 10, 2007
    Location:
    Northwestern Wisconsin, USA
    #9
    Math Rumors anyone?
     
  10. Doctor Q Administrator

    Doctor Q

    Staff Member

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    #10
    Page 1 news story...
    Apple Primed For Big Announcement?

    Apple fans have been buzzing with speculation that a new Macintosh-only prime number will be announced by Steve Jobs at a press conference in Cupertino at noon today. Reports that Apple may release the prime number for Windows at a later date are unconfirmed at this time.​
     
  11. theman thread starter macrumors 6502a

    Joined:
    Jul 26, 2007
    #11
    Ok guys, here's an update. I'm not sure how it went... There were a couple of really hard questions... Stupid 3D surfaces and volumes. Hopefully I got at least 85% (which would most likely be an A...please)

    have fun mathing
     
  12. Jaffa Cake macrumors Core

    Jaffa Cake

    Joined:
    Aug 1, 2004
    Location:
    The City of Culture, Englandshire
    #12
    Volumes? I hope you remembered about those DVDs. ;)

    Fingers crossed for a good result.
     
  13. ZeratulsAvenger macrumors newbie

    Joined:
    Apr 16, 2005
    #13
    My school is on a trimester/quarter system (depending on who you ask), so we have calculus split up into 3 classes, so I can't remember which one it is that you are doing; either way I know I hated triple integrals because they always gave us limits of integration that were functions of x or y or z, and then ask us to rearrange the integrals to get them in such and such order. Glad I am done with it. Tedious and so easy to mess something up.

    Are you going to do differential equations? I found that much easier than any calculus class I took, so if you do, you have something to look forward to.

    PS-Polar coordinates are still a mystery to me. Plenty of equations in one of my classes are easier to derive while using a polar coordinate system, but past the derivation it always seems like utter nonsense.
     
  14. Memeryle.12345 macrumors newbie

    Joined:
    Nov 9, 2007
    #14
    Just study and study until you worn-out. Anyway you will see what you did after you have passed.
     
  15. theman thread starter macrumors 6502a

    Joined:
    Jul 26, 2007
    #15
    ok guys, I got my results yesterday.

    I got an 88%, which is pretty good. the highest grade in the class was a 92%

    I should have gotten a 93%, but I made 2 REALLY dumb mistakes.... oh well, I can't ALWAYS have the highest grade in the class...


    a third of my class got below 50% though... :eek: i didn't think it was that hard...

    And yeah, to the above poster, the 2 questions i screwed up were polar coodinates, and the triple integral thing where you have to draw 2 pictures and figure out the functions in terms of x,y,z for the boundaries... hard stuff.
    Did you learn cylindrical and spherical coordinates? I find this very interesting... makes you think differently.

    i am not taking diff eq next semester because i simply don't have time for it, but probably will take it next year.

    peace.
     
  16. Doctor Q Administrator

    Doctor Q

    Staff Member

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    #16
    Congratulations on your outstanding performance, theman, especially if you really weren't paying attention in class.

    Obviously, youtheman!
     

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