How to solve differential equation with variable input parameters

2 Ansichten (letzte 30 Tage)
How to solve differential equation: zdot = (w*v*z)+1. where w=constant, v= velocity array of size 10, z is the initial condition=0. The solution for the first step is the z value for the next step.

Akzeptierte Antwort

Torsten
Torsten am 29 Jun. 2017
z0=0
z1=z0+dt*(w*v1*z1+1) -> z1=(z0+dt)/(1-dt*w*v1)
z2=z1+dt*(w*v2*z2+1) -> z2=(z1+dt)/(1-dt*w*v2)
...
In general:
Use the recursion
z(i+1)=(z(i)+dt)/(1-dt*w*v(i+1)) (i=1,...,9)
with
z(1)=0
Best wishes
Torsten.
  3 Kommentare
Torsten
Torsten am 29 Jun. 2017
Bearbeitet: Torsten am 29 Jun. 2017
Then, with your time-dependent vector v, you can adapt the example "ODE with Time-Dependent Terms" provided under
https://de.mathworks.com/help/matlab/ref/ode45.html
Best wishes
Torsten.

Melden Sie sich an, um zu kommentieren.

Weitere Antworten (0)

Kategorien

Mehr zu Numerical Integration and Differential Equations finden Sie in Help Center und File Exchange

Produkte

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by