Description Usage Arguments Details Value Note Author(s) See Also Examples
Solves numerically an initial conditions problem for a set of Ordinary Differential Equations (ODE) by Runge-Kutta 4 method. Integrates numerically the equations from tmin to tmax by steps of dt.
1 | multirunge(y0, tmin, tmax, dt, param, sys)
|
y0 |
Numerical vector : initial conditions (as many elements as equations in sys) |
tmin |
Minimum value of the independent variable (generally the time) |
tmax |
Maximum value of the independent variable |
dt |
Time increment (default = 0.01) |
param |
Numerical vector providing the parameters for sys |
sys |
The set of functions giving the right sides of the ODEs |
sys
must be provided by the user. Please edit the object sys
(see ?sys
and examples)
A numerical vector of nfunct elements. Nfunct is the number of unknown functions of sys
determined by the function as length(sys())
Should seldom be used independently. Most often it will be called by evrunge
Jean-Sebastien Pierre
Jean-sebastien.pierre@univ-rennes1.fr
1 |
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