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Ricardo Machado


Last seen: 4 years ago |  Active since 2019

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pdepe problem (numerical vs analytical solution)
So this is my pde: The IC for 0<x<1: The b.c for t>0. u is bounded. Using separation of variables by letting v = u-1, ...

4 years ago | 1 answer | 0

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solving a system of pdes using pdepe
So i have the follwing system of pdes: where . where . The symmetry boundary conditions are: The other two boundary ...

4 years ago | 0 answers | 0

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Plotting diffusion eq.
I'm stuck at plotting the solution to the diffusion equation. For the provided c and D, what would be optimal time and distance ...

4 years ago | 1 answer | 0

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simple linear programming problem
This is an example from my textbook Minimize 5x-7y-4z+6t Subject to 2x+6y+z-t <= 5 5x+3y-6z-2t <= 7 -x-3y+6z+2t <= 6 x,y,z,...

5 years ago | 1 answer | 0

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ODE45 to solve a system of two coupled 2nd order ODEs
So this is my code for a system of coupled oscillators syms x1(t) x2(t) k1 k2 m Dx1 = diff(x1); D2x1 = diff(x1,2); Dx2 = di...

5 years ago | 1 answer | 0

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Question


Using ODE45 to solve two coupled second order ODEs
I used the ODE to vector field function to change my 2 coupled 2nd order ODEs to a system of 1st order ODEs. syms k1 k2 m t x1...

5 years ago | 1 answer | 0

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