Ali

Last seen: 2 months ago | Active since 2013

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Is there a way to require ddesd to use a value from the previous time step?
Is there a way to use 'ddesd' or 'dde23' to evaluate y at the previous time step (by time step, I mean a full time step t+dt)? I...

11 years ago | 0 answers | 0

answers

Question

Convergence failure for consistent initial conditions using 'decic' function
I have a set of highly non-linear, implicit ODEs and I need to use an implicit solver such as ode15i to integrate the equations....

11 years ago | 0 answers | 2

answers

Answered
How does ode45 handle highly coupled ODEs (where y' depends on x' and x' depends on y', etc.)?
After looking through many lines of code, I realize that the reason MATLAB is accepting an implicit equation without complaint i...

11 years ago | 0

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Question

How does ode45 handle highly coupled ODEs (where y' depends on x' and x' depends on y', etc.)?
If I have two sets of highly coupled ODEs such as: dy/dt = A*dx/dt + B*y + C*x dx/dt = D*dy/dt + E*y + F*x or if I have...

11 years ago | 1 answer | 0

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Question

if statements and abs() function in variable-step ODE solvers
I was reading this post online where the person mentioned that using "if statements" and "abs()" functions can have negative rep...

11 years ago | 1 answer | 0

answer

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