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DEtools[matrix_riccati] - solve a Matrix Riccati differential equation
Calling Sequence
matrix_riccati(A, K, Z0, t)
matrix_riccati(A, K, Z0, t=t0)
matrix_riccati(A, K, t)
matrix_riccati(A, K, t=t0)
Parameters
A, K
-
Matrix coefficients of the Riccati Matrix Equation
Z0
Matrix representing the initial conditions for t=t0
t
independent variable
t0
position of initial conditions
Description
The Matrix Riccati differential equation is
with
where , and are n by n matrices. matrix_riccati returns the solution, .
The command with(DEtools,matrix_riccati) allows the use of the abbreviated form of this command.
Examples
The unknowns are
A simple example would be
The matrix with the initial values and is
The system of equations represented by these matrices is thus
The two coupled odes are
The matrix solution to this matrix system of equations with initial conditions at is computed as:
Recalling the form of , the solution to the system of odes is constructed from as
This result can be verified with odetest
See Also
dsolve, odetest, riccati_system, riccatisol
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