Re: Differential Equation
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- Subject: [mg132663] Re: Differential Equation
- From: David Reiss <dbreiss at gmail.com>
- Date: Wed, 30 Apr 2014 01:41:35 -0400 (EDT)
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Check the syntax for the proper use of DSolve. You are looking for
DSolve[{Y'[x] == A*f[x] - B*Y[x], Y[C] == 0}, Y, x]
Also note that C is a reserved symbol in Mathematica. Generally you should avoide using capital letters for your parameters and functions
On Tuesday, April 29, 2014 1:33:05 AM UTC-4, Zohreh wrote:
> Dear Friends,
>
>
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> I am going to solve the following differential equation:
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> dY(x)/dx=A*f(x)-B*Y(x)
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> In which A and B are some parameters, f(x) is a function of x, and Y(C)=0 (C is a parameter).
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> I tried to solve it in Mathematica by
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> DSolve[Y'[x] == A*f[x] - B*Y[x], Y[C] == 0, x]
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>
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> But I get the following error
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> DSolve::dsfun: "Y[C]==0 cannot be used as a function
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> I would highly appreciate it if somebody can help me.
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>
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> Best reards.
C