Question

How can I "simplify" the resolution of this system of odes?

Hi, as you can see in the attached file, I've a system of second order ODEs with BCs. I tried to solve it with bvp4c, firstly c...

28 days ago | 0 answers | 0

Question

How to solve a system of ODEs with BCs, without bvp4c?

Hi, I solved a system of ODEs with BCs, by using bvp4c. The system is a bit complicated, consisting of 21 non linear equations,...

30 days ago | 0 answers | 0

Question

How can I optimize initial guess of a solution?

Hi, I solved a system of non linear ODEs with bvp4c. The system is a bit complicated, since it contains 17 equations with 17 va...

1 month ago | 0 answers | 0

Question

How can I solve this system of ODEs involving both time and space?

Hi, I have this complicated system of ODEs (see attached file), whose equations depend on time and space. I have no idea how ...

1 month ago | 0 answers | 0

Question

How can I insert this boundary condition?

Hi everyone, I have an ODE system with several variables, like this: y1' = f (y1,y2) y2' = g (y1,y2) I'm solving it with...

1 month ago | 0 answers | 0

Question

How to solve this ODE system which involves these integrals?

Hi, I'm trying to solve the following (simplified) ODE system (see attached file). Where X1 and X2 are my functions, z is the i...

1 month ago | 1 answer | 0

Question

How can I improve accuracy using bvp4c?

Hi, I solved an ODEs system with BCs. The system is a bit complicated, it consists of 10 second order equations (thus, 20 first ...

1 month ago | 0 answers | 0

Question

How to plot 3 graphs in 1 figure?

Hi, I want to plot 3 graphs in one figure, arranging them two on the left and one on the right. With subplot, I managed to arra...

2 months ago | 1 answer | 0

Question

How should I get multiple solutions related to different BCs in this script?

Hi, I'm solving a system of ODEs with BCs, with bvp4c function. My simplified script is as follows: rmesh = ... ...

2 months ago | 0 answers | 0

Question

What does it represent the second vector in solinit?

Hi, I solved a system of ODEs second order with BCs with bvp4c. I have 8 variables (4 are the functions I'm interested, y(x), ...

2 months ago | 0 answers | 0

Question

Questions about bvp4c solution

Hi, I solved correctly a system of ODE second order with BCs, with the instruction bvp4c. However, I have some questions about ...

2 months ago | 1 answer | 0

Question

Solving a system of ODE with BCs

Hi, I'm trying to solve a system of 2 ODE with boundary conditions. The integration variable is r, which is the sferical coord...

2 months ago | 1 answer | 0

Question

Solving an ODE second order

Hi, I have to solve an ODE second order in Matlab, like this: a*y''(x)=b Where x is the space coordinate, a and b are costan...

2 months ago | 1 answer | 0

Question

How can I use ode15s with a tspan of two elements?

Hi, I'm using the function ode15s to solve ODE. I don't understand why, with a vector of time with only 2 elements, Matlab autom...

2 months ago | 1 answer | 0