| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| class(ddeabm_class), | intent(inout) | :: | me | |||
| real(kind=wp), | intent(in) | :: | t |
time |
||
| real(kind=wp), | intent(in), | dimension(:) | :: | x |
state |
|
| real(kind=wp), | intent(out), | dimension(:) | :: | xdot |
derivative of state () |
Interface to the ddeabm_class derivative function.
Known as df in the documentation. provided by the user
to define the system of first order differential equations
which is to be solved. for the given values of t and the
vector x()=(x(1),x(2),...,x(neq)), the subroutine must
evaluate the neq components of the system of differential
equations dx/dt=df(t,x) and store the derivatives in the
array xdot(), that is, xdot(i) = dx(i)/dt for
equations i=1,...,neq.