2lee

About

Username
2lee
Joined
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15
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Member
Points
5
  • Eigenranking

    My matrix is

    matrix = [

      [0,1,3,2,4],

      [2,0,2,2,2],

      [3,1,0,1,3],

      [4,4,3,0,3],

      [2,4,4,4,0]

    ]

    Team 5: rating = 0.5369571232846212
    Team 4: rating = 0.5349109263288253
    Team 1: rating = 0.4288594144453331
    Team 3: rating = 0.35096444755792117
    Team 2: rating = 0.34416697668415475
    

    Team 5 was the best, followed very closely by team 4.

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  • Modeling 2D Heat Flow

    The temperature near the midpoint of the insulated edge is around 1.83 after 1s

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  • Random heat evolution problem

    Given a metal bar of length 1 that lies along the unit interval. Its temperature distribution is

    $$g(x)=6x^2 - 4x $$

    At t=0, its left end is 3 degrees and right end is -3 degrees.

    Sketch the distribution at times

    $t=0,t=0.01,t=0.1$,and $t=10.$


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  • Steady state heat flow with source

    Looking for the temperature distribution in a steady state problem (i.e. the time derivative is not relevant once the system reaches steady state)

    My given equation and boundary values were

    $$ u_t = 3u_{xx} + 8, u(0, t) = -4, u(1, t) = 6 $$

    when $ u_t = 0 $ the sytem is steady state, then solving for $u_{xx} $gives $ u_{xx} = \frac{8}{3} $

    anti-differentiating twice gives the general solution $ u(x) = \frac{8}{3}x^2 + ax + b $

    Then, using the boundary values:

    $$ u(x) = \frac{4}{3}x^2 + \frac{26}{3}x - 4 $$

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  • A random vibration problem

    The displacement for my particular string set up at t = 1.3s at the midpoint was -.632


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