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Fixed Step Runge-Kutta

version (2.84 KB) by Carlos Montalvo
Operates just like ode45 or ode23 except it uses the Runge-Kutta 4 algorithm


Updated 16 Mar 2015

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This code works very similarly to the ode45, ode23, etc family except it uses the fixed step RK4 algorithm. The inputs are the function handle, the time span, initial conditions and timestep. The extraparameters variable can be used to pass extra information to the derivatives routine rather than using globals. next is a number between 1 and 100 in order to notify the user of the simulations progress. If the variable quat = 'Quat' the simulation will normalize the quaternions assuming the states are (x,y,z,q0,q1,q2,q3,u,v,w,p,q,r).

Cite As

Carlos Montalvo (2020). Fixed Step Runge-Kutta (, MATLAB Central File Exchange. Retrieved .

Comments and Ratings (2)

Lauren Keel

Lauren Keel


I changed the title of the project to something more intuitive. (Change from odeRK4 - to Runge-Kutta 4)

MATLAB Release Compatibility
Created with R2009a
Compatible with any release
Platform Compatibility
Windows macOS Linux