Class
NumCosmoMathOdeSpline
Description [src]
final class NumCosmoMath.OdeSpline : GObject.Object
{
/* No available fields */
}Automatic generation of splines from ODE solvers.
This class defines an object that integrates an ODE and generates a spline from the solution.
Functions
ncm_ode_spline_clear
Atomically decrements the reference count of os by one. If the reference count drops to 0, all memory allocated by os is released. The pointer is set to NULL.
Instance methods
ncm_ode_spline_auto_abstol
If on is TRUE, the object uses the value of $\mathrm{d}y_i$ to estimate the
abstol as $T_\mathrm{abs} = \dot{y}i \mathrm{d}t_m T\mathrm{rel}$,
where $T_\mathrm{rel}$ is the relative tolerance and $\mathrm{d}t_m$ is the
minimum time step #NCM_ODE_SPLINE_MIN_STEP. Useful when computing integrals as ODEs.
ncm_ode_spline_prepare
This function prepares the NcmOdeSpline os and fills its internal NcmSpline with the evaluated ode’s solution.
ncm_ode_spline_set_abstol
This functions sets the absolute tolerance, abstol, of the edo integrator.
ncm_ode_spline_set_ini_step
Sets a guess for the initial step size. If ini_step is
zero it uses the automatic determination based on the tolerances.
ncm_ode_spline_set_interval
This function sets os interval [xi, xf] and its initial value yi in order to integrate the ode.
ncm_ode_spline_set_min_subdivisions
Sets the minimum number of subdivisions for the integration interval. When set to a value greater than zero, the integrator will cap the maximum step size at (xf - xi) / min_subdivisions, guaranteeing at least min_subdivisions points in the resulting spline. Set to 0 to disable (default behavior).
ncm_ode_spline_set_reltol
This functions sets the relative tolerance, reltol, of the edo integrator.
ncm_ode_spline_set_xf
This function sets the final point, xf, to integrate the edo.
Note that if yf is also set, yf will take precedence.
ncm_ode_spline_set_yf
This function sets the final value of the function to be evaluated. When yf is
reached, the edo’s integration is stopped. Note that if xf is also set, yf will
take precedence.
Properties
NumCosmoMath.OdeSpline:auto-abstol
Boolean to set whether or not the absolute tolerance is going to be estimated internally by the ode integrator.
NumCosmoMath.OdeSpline:min-subdivisions
Minimum number of subdivisions of the integration interval. When set to a value greater than zero, the integrator will enforce a maximum step size of (xf - xi) / min_subdivisions. This guarantees at least min_subdivisions points in the resulting spline. Default is 0 (no enforcement).
Signals
Signals inherited from GObject (1)
GObject::notify
The notify signal is emitted on an object when one of its properties has its value set through g_object_set_property(), g_object_set(), et al.