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simultaneous differential equations

Started by"J and B" <noslowski@comcast.net>
First post2011-07-13 07:11 +0000
Last post2011-07-14 09:26 +0000
Articles 4 — 3 participants

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  simultaneous differential equations "J and B" <noslowski@comcast.net> - 2011-07-13 07:11 +0000
    Re: simultaneous differential equations Alois Steindl <Alois.Steindl@tuwien.ac.at> - 2011-07-14 09:24 +0000
    Re: simultaneous differential equations "Kevin J. McCann" <Kevin.McCann@umbc.edu> - 2011-07-14 09:26 +0000
    Re: simultaneous differential equations "Kevin J. McCann" <Kevin.McCann@umbc.edu> - 2011-07-14 09:26 +0000

#3696 — simultaneous differential equations

From"J and B" <noslowski@comcast.net>
Date2011-07-13 07:11 +0000
Subjectsimultaneous differential equations
Message-ID<ivjger$2ag$1@smc.vnet.net>
I hope it is ok to ask this general question.  I am looking for examples of
how to solve simultaneous differential equations using Mathematica.  I would
prefer examples that do not use manipulations as shown in the demonstration
projects.  
 
Thanks  

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#3708

FromAlois Steindl <Alois.Steindl@tuwien.ac.at>
Date2011-07-14 09:24 +0000
Message-ID<ivmckq$fb6$1@smc.vnet.net>
In reply to#3696
Hello,
from your question it isn't clear whether you want to solve the
equations analytically (DSolve) or numerically (NDSolve).
If you look into the help pages for DSolve, then the first "neat
example" shows a system of 2 equations.
Of course also the second heading of DSolve shows the necessary calling
syntax.

Good luck
Alois


-- 
Alois Steindl,                           Tel.: +43 (1) 58801 / 32558      
Inst. for Mechanics and Mechatronics     Fax.: +43 (1) 58801 / 32598
Vienna University of Technology,         A-1040 Wiedner Hauptstr. 8-10   

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#3711

From"Kevin J. McCann" <Kevin.McCann@umbc.edu>
Date2011-07-14 09:26 +0000
Message-ID<ivmcnm$fc4$1@smc.vnet.net>
In reply to#3696
Look at the Help for DSolve. There is an example of the solution of 
three coupled first order equations.

Kevin

On 7/13/2011 3:11 AM, J and B wrote:
> I hope it is ok to ask this general question.  I am looking for examples of
> how to solve simultaneous differential equations using Mathematica.  I would
> prefer examples that do not use manipulations as shown in the demonstration
> projects.
>
> Thanks

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#3712

From"Kevin J. McCann" <Kevin.McCann@umbc.edu>
Date2011-07-14 09:26 +0000
Message-ID<ivmcol$fcc$1@smc.vnet.net>
In reply to#3696
I should have added that the example I referred to in the DSolve Help is 
under Neat Examples.

Kevin

On 7/13/2011 3:11 AM, J and B wrote:
> I hope it is ok to ask this general question.  I am looking for examples of
> how to solve simultaneous differential equations using Mathematica.  I would
> prefer examples that do not use manipulations as shown in the demonstration
> projects.
>
> Thanks

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