Questions Asked

UsukiDoll:
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I am trying to introduce two parameters: initial condition x0 and time step h, so I tried to do what the example from the text file did, but…
 updated 5 hours ago
 37 replies
 1 Medal

UsukiDoll:
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Anyone out there uses Matlab?!!! I need help with adding a parameter so the code can reproduce the number of days with the initial condition…
 updated 7 hours ago
 1 reply
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UsukiDoll:
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First order ode... dr/dt=a/pbr/3p
 updated 7 days ago
 152 replies
 4 Medals

UsukiDoll:
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ode refresher and yes I know it's a separable one!
dy/dx=yy^2
 updated 11 days ago
 107 replies
 6 Medals

UsukiDoll:
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How to find a solution for the heat equation that satisfies the Boundary Conditions and the Initial Condition.
 updated one month ago
 69 replies
 1 Medal

UsukiDoll:
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How to find the inverse fourier transform for the heat equation. ???
 updated one month ago
 6 replies
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UsukiDoll:
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What is the fourth derivative of
…
 updated 2 months ago
 48 replies
 3 Medals

UsukiDoll:
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@dan815 are you there? I have a pde problem
 updated 2 months ago
 32 replies
 1 Medal

UsukiDoll:
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integration by parts problem see link... How do I tackle this since this is the only problem I have
Keep in mind we are integrating with re…
 updated 3 months ago
 22 replies
 2 Medals

UsukiDoll:
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quick question how do I change e^C to C for
$e^{lny}=e^{x+C}$
…
 updated 4 months ago
 47 replies
 8 Medals

UsukiDoll:
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http://math.stackexchange.com/questions/931921/findtheparticularsolutionofux2uy4uexysatisfyingthefollowings
 updated 4 months ago
 29 replies
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UsukiDoll:
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http://math.stackexchange.com/questions/930314/findasolutiongxthatsatisfiesthepdeux3uyu1
 updated 4 months ago
 7 replies
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UsukiDoll:
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find some constants $a$ and $b$ (not both zero), such that $u(x,y)=f(ax+by)$ is a generic solution, where $f$ is an arbitrary $C^1$ function…
 updated 4 months ago
 44 replies
 2 Medals

UsukiDoll:
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http://math.stackexchange.com/questions/927336/usingseparationofvariablestosolveutt16uxxuxt
 updated 4 months ago
 12 replies
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UsukiDoll:
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suppose I want to multiply 2 x 5 in base 2. I know how to create the table but then I am stuck. I know 2 x 5 = 10 but that's base 10. I don'…
 updated 4 months ago
 58 replies
 3 Medals

UsukiDoll:
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http://math.stackexchange.com/questions/923137/findasolutiontolaplacesequationthatsatisfiespolarcoordinatesandshow
 updated 4 months ago
 110 replies
 1 Medal

UsukiDoll:
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Finding solutions that would satisfy the wave equation and Laplace equation ...pdes
see attachments
 updated 4 months ago
 14 replies
 1 Medal

UsukiDoll:
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pde example problem
 updated 4 months ago
 22 replies
 3 Medals

UsukiDoll:
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What is the least number of weights required to weight any integral number of pounds up to 63 pounds if one is allowed to put weights in onl…
 updated 5 months ago
 84 replies
 2 Medals

UsukiDoll:
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number theory proof problem regarding Euclid's Division Lemma
 updated 5 months ago
 107 replies
 4 Medals

UsukiDoll:
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http://math.stackexchange.com/questions/864114/findasolutiontoalinearsystemusingthedoperatorandmethodofeliminatio
 updated 6 months ago
 53 replies
 2 Medals

UsukiDoll:
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constant coefficient problem
y'''2y''y'+2y = 0
 updated 8 months ago
 10 replies
 2 Medals

UsukiDoll:
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separable equation 1/x dx + dy = 0
 updated 8 months ago
 11 replies
 1 Medal

UsukiDoll:
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dy/dx = x+1 / y separable equation
 updated 8 months ago
 9 replies
 3 Medals

UsukiDoll:
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another separable equation
xdx+ydy = 0
 updated 8 months ago
 15 replies
 4 Medals

UsukiDoll:
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separable equation see drawing
 updated 8 months ago
 29 replies
 3 Medals

UsukiDoll:
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http://math.stackexchange.com/questions/751410/provefinftyainftyrightarrowbinftyisabijection
 updated 9 months ago
 50 replies
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UsukiDoll:
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http://math.stackexchange.com/questions/776815/letaabcfgibbfhandcaklmshowthatbackslashis
 updated 9 months ago
 2 replies
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UsukiDoll:
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Cauchy sequence... I need to prove 03 and 04.
 updated 9 months ago
 55 replies
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UsukiDoll:
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http://math.stackexchange.com/questions/767117/letabinrwhereabprovethatthereexistarationalnumbercand/767138?noredirect=1#767…
 updated 9 months ago
 88 replies
 5 Medals
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