>> help filename

in Matlab command window. (here 'filename' should be replaced by actual name, for instance, euler).

Some fixed-stepsize Runge-Kutta type solvers for initial value problems:

- Euler's method for scalar equations: euler1.m
- Heun's method for scalar equations: heun1.m
- The midpoint method for scalar equations: midpoint1.m
- (General) Euler's method: euler.m
- (General) Heun's method: heun.m
- The (general) midpoint method: midpoint.m
- Runge-Kutta method of order 4: rk4.m

- One step of Euler's method: eulerstep.m
- One step of Heun's method: heunstep.m
- One step of the midpoint method: midpointstep.m
- One step of Runge-Kutta method of order 4: rk4step.m
- A fixed-stepsize solver that can use any of the above as steps: solver1.m

- Runge-Kutta method: plotrk.m

- Pendulum: pend.m
- Two-body problem: orbit2.m
- Solar system simulator: solar.m
- Outer solar system data: outer.m

- Runge-Kutta-Fehlberg order 4/order 5 embedded pair: rkf45.m

- Backward Euler with Newton's method as a solver (fixed step-size): beuler.m

- A simple implementation of Newton's method: newton.m
- A simple implementation of the secant method: secant.m

- Adams-Bashforth 4-step method: ab4.m
- Adams-Bashforth / Adams-Moulton predictor-corrector pair of order 4: abm4.m

- Linear shooting method (with fixed stepsize IVP solvers): linshoot.m
- Shooting method using bisection (with fixed stepsize IVP solvers): bisectshoot.m
- Shooting method using bisection (with Runge-Kutta-Fehlberg 4/5 variable stepsize solver): rkf45bisectshoot.m