finding state transition matrix-regd.

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srihari
srihari 2012-11-28
hello every one i have a matrix A as syms t A=[-1 0;exp(-3*t) 0] i tried to find the state transition matrix by using
function [phi] = statetrans(A) t = sym('t'); phi = expm(A * t); end But came up with an error showing
??? function [phi] = statetrans(A) ??? Undefined function or method 'statetrans' for input arguments of type 'sym'. | Error: Function definitions are not permitted in this context
Then i replaced t with r in matrix A
But i didnot get the result but showed an error of
??? function [phi] = statetrans(A)
|
Error: Function definitions are not permitted in this context
Please help me guys..........

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