where all problem parameters have a fixed value. The equations are the same as those in demo pp2. The continuation parameter is the independent time variable, namely PAR(14).
Note that Euler time integration is only first order accurate, so that
the time step must be sufficiently small to ensure correct results.
Indeed, this option has been added only as a convenience, and should
generally be used only to locate stationary states.
Note that the AUTO-constants DS, DSMIN, and DSMAX
control the step size
in the space consisting of time, here PAR(14), and the state vector,
here 
.
| COMMAND | ACTION |
| mkdir ivp | create an empty work directory |
| cd ivp | change directory |
| @dm ivp | copy the demo files to the work directory |
| cp r.ivp.1 r.ivp | get the constants-file |
| @r ivp | time integration |
| @sv ivp | save output-files as p.ivp, q.ivp, d.ivp |