Lecture 4.9: Variation of parameters for systems
Lecture 4.9: Variation of parameters for systems
Matthew Macauley
Department of Mathematical Sciences
Clemson University
Math 2080, Differential Equations
M. Macauley (Clemson)
Lecture 4.9: Variation of parameters for systems
Differential Equations
1/6
Variation of parameters for non-systems
Variation of parameters is a ¡°last resort¡± method for finding a particular solution, yp (t).
First order ODE: y 0 + p(t)y = f (t)
M. Macauley (Clemson)
Lecture 4.9: Variation of parameters for systems
Differential Equations
2/6
Variation of parameters for non-systems
Variation of parameters is a ¡°last resort¡± method for finding a particular solution, yp (t).
First order ODE: y 0 + p(t)y = f (t)
(i) Solve yh0 + p(t)yh = 0:
M. Macauley (Clemson)
Lecture 4.9: Variation of parameters for systems
Differential Equations
2/6
Variation of parameters for non-systems
Variation of parameters is a ¡°last resort¡± method for finding a particular solution, yp (t).
First order ODE: y 0 + p(t)y = f (t)
(i) Solve yh0 + p(t)yh = 0: get yh (t) = Cy1 (t)
M. Macauley (Clemson)
Lecture 4.9: Variation of parameters for systems
Differential Equations
2/6
Variation of parameters for non-systems
Variation of parameters is a ¡°last resort¡± method for finding a particular solution, yp (t).
First order ODE: y 0 + p(t)y = f (t)
(i) Solve yh0 + p(t)yh = 0: get yh (t) = Cy1 (t) = Ce ?
M. Macauley (Clemson)
R
p(t) dt .
Lecture 4.9: Variation of parameters for systems
Differential Equations
2/6
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