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Della


Last seen: 9 months ago |  Active since 2023

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Can't solve the equations
I want to solve for pb and pg and then make a chart of pb for different sb values. However, I am unable to solve these equations...

9 months ago | 3 answers | 0

3

answers

Question


Index in position 2 exceeds array bounds
Could someone please tell me what should I put for D2q in odefcn? syms p Dp D2p q Dq D2q x r=0.06; s=0.3; m=0.01; f=0.075...

1 year ago | 2 answers | 0

2

answers

Question


How to resolve this error "Array indices must be positive integers or logical values."
syms p Dp D2p q Dq D2q x r=0.09; s=0.1; m=0.03; f=0.075; vmax=100; xf=90; mum=0.5; c=0.5; t1=xf*v...

1 year ago | 1 answer | 0

1

answer

Question


Trying to find a solution for nonlinear ODE
Hello, I am currently facing difficulty in finding a solution for the provided code due to the nonlinearity of the first ODE. I ...

1 year ago | 1 answer | 0

1

answer

Question


Unable to solve boundary condition problem
Hello, I've got an ODE with a singularity at x=0. I'm trying to solve for D2y but am having difficulty. Is there anyone who can ...

1 year ago | 1 answer | 0

1

answer

Question


Unable to solve the collocation equations -- a singular Jacobian encountered.
Hi, I'm trying to run the code below. However, it displays the following error message: "Unable to solve the collocation equatio...

1 year ago | 1 answer | 0

1

answer

Question


Code generation failed due to unexpected object of type 'RootOf'.
Hi everyone, I am trying to run the code below, but Matlab keeps throwing this error message at me. Does anyone know whats the i...

1 year ago | 2 answers | 0

2

answers

Question


How to solve this equation?
I have an equation that I'd like to solve for p where 0<a<1. Is there anyone who can help me with this? when I'm running my code...

1 year ago | 1 answer | 0

1

answer

Question


Problem with solving an ODE
Hello, When I run the code below, I get an error because the initial condition for y is dependent on Dy. I've seen this case (b...

1 year ago | 1 answer | 0

1

answer

Question


Unable to solve the collocation equations -- a singular Jacobian encountered.
Hello everyone, I'm new to Matlab and have a simple question. I'd like to plot h=x*y, where y takes the form of an ODE. How do ...

1 year ago | 1 answer | 0

1

answer