simulateNonHybridTT

Method of continuousTimeMdss.

Integrate a non-hybrid tensor-train (TTTensor) mdss model as a DAE with ode15i.

Source: src/simulator/@continuousTimeMdss/simulateNonHybridTT.m

What is solved

simulateNonHybridTT is the tensor-train counterpart of simulateNonHybrid: it integrates a non-hybrid model (no binaries, no inequalities) whose tensor is a TTTensor as a plain index-1 differential-algebraic system

$$F(\dot x, x, u(t), y) = 0,$$

with MATLAB’s fully-implicit ode15i. The solver state is $[x;\,y]$.

Consistent initial conditions

The consistent initial point $(\dot x_0, y_0, \dot y_0)$ comes from eventTotalDerivativeTT; it is retried once if the first attempt returns NaN.

Residual and Jacobian handles

odeHandle returns $F$ at the current $(\dot w, w, u(t))$ with the inputs linearly interpolated; jacobiHandle returns the state and state-derivative Jacobian blocks the fully-implicit solver needs (the $\dot y$ block being zero, since algebraic variables are not differentiated). The handles are referenced directly, not through anonymous wrappers, so the Jacobian reports nargout == 2 as ode15i requires.

After applySolverOptions, solve runs over the input time span and the trajectory is stored in sim.time and sim.variableTrajectory; sim.eventTime is empty since there are no events.

Input arguments

Output arguments

See also

continuousTimeMdss · simulateNonHybrid · eventTotalDerivativeTT · TTTensor

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