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Math Help - state-space model

  1. #1
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    state-space model

    hello everybody
    i was trying to study state space model and naturally there were state variables involved ...so isaw its defination at wikipedia ..i understood the discrete one ..but in continous one he said that the derivative of the function is the next state of the sytem ..so how is that ..i mean i didnt understand how is derivative the next state of the system ...thankyou in advance to all who contribute
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  2. #2
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    Quote Originally Posted by corleone2463 View Post
    hello everybody
    i was trying to study state space model and naturally there were state variables involved ...so isaw its defination at wikipedia ..i understood the discrete one ..but in continous one he said that the derivative of the function is the next state of the sytem ..so how is that ..i mean i didnt understand how is derivative the next state of the system ...thankyou in advance to all who contribute
    Please be more specific, there are a number of thinks know as state space models. As you are posting in the calculus forum I will assume you mean modelling using differential equations, in which case see here.

    CB
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  3. #3
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    i dont know much about state space models ....i am talkin about the one on wikipedia...the link is..http://en.wikipedia.org/wiki/State_variable..at the end of this page he has discussed the continous system...thats what im talking about
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  4. #4
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    Quote Originally Posted by corleone2463 View Post
    i dont know much about state space models ....i am talkin about the one on wikipedia...the link is..http://en.wikipedia.org/wiki/State_variable..at the end of this page he has discussed the continous system...thats what im talking about
    That link cannot be followed because it has been shortened and not does not go to whatever article you want it to.

    CB
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  6. #6
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    Quote Originally Posted by corleone2463 View Post
    hello everybody
    i was trying to study state space model and naturally there were state variables involved ...so isaw its defination at wikipedia ..i understood the discrete one ..but in continous one he said that the derivative of the function is the next state of the sytem ..so how is that ..i mean i didnt understand how is derivative the next state of the system ...thankyou in advance to all who contribute
    The derivative is not the next state of the system, there is no next state, the derivative of the state vector determines how the state evolves.

    CB
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  7. #7
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    well he has written there that it describes the next state ...so u mean it basically tells how the state is varying
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  8. #8
    Grand Panjandrum
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    Quote Originally Posted by corleone2463 View Post
    well he has written there that it describes the next state ...so u mean it basically tells how the state is varying
    As there is no next state in continuous system, what else can it be there to tell you other than how the state changes over "infinitesimal" intervals of time.

    CB
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