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delvin

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2 years, 148 days
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These are replies submitted by delvin

thank you...

delvin 50
May 25 2023
0 0

@mmcdara 

 No, thank you very much for your precious time to answer.
I ran the program, it didn't run, I sent you a private message,But I don't know why it wasn't sent.
Again, sorry if you are upset.
And thank you very much

@acer  Yes, I got it. Thanks,&nbs...

delvin 50
May 25 2023
0 0

@acer 

Yes, I got it.

Thanks, 

@C_R   Thanks,...

delvin 50
May 25 2023
0 0

@C_R 

 Thanks,

@Axel Vogt   ok...

delvin 50
May 25 2023
0 0

@Axel Vogt 

 ok

@Axel Vogt   File 1 and 2 tha...

delvin 50
May 25 2023
0 0

@Axel Vogt 

 File 1 and 2 that you posted cannot be downloaded.
Thank you for your advice

I use version 2022...

delvin 50
May 25 2023
0 0

@C_R 

 Thanks,
I use version 2022.
Error again!!!
So should I install the new version?

Thank you for your guidance.

Thank you...

delvin 50
May 24 2023
0 0

@C_R 

Thank you for your valuable time
I want to run the attached program and get the answer to code 01, but it gives the error code 02. Do you know what the reason is? I want to get unknown coefficients and this method came to my mind
I said that maybe the Ln function should be removed somehow.

Thank you for your guidance.

01.mw

02.mw

there is an error!!!...

delvin 50
May 21 2023
0 0

@mmcdara 

  Thank you for your valuable time.
I want to make a substitution in the eq equation and then calculate the EQ values and finally get the unknown values.
I don't know if the code I uploaded at first is correct or not?
Unfortunately, there is an error.

@C_R   Where do I add this co...

delvin 50
May 21 2023
0 0

@C_R 

 Where do I add this command?
Do I need to change another place?

thanks ocean...

delvin 50
May 21 2023
0 0

@Hullzie16 

 Yes, unfortunately the equation is complicated. (It is not c, it is c1)
I run your code, but it doesn't give the answer you got.
Thank you for your valuable work.

 Degree_3.mw

@acer   is an angle....

delvin 50
May 19 2023
0 0

@acer 

 is an angle.

@mmcdara   I don't know, ...

delvin 50
May 09 2023
0 0

@mmcdara 

 I don't know, I said maybe there is a simpler method to get the unknowns of a polynomial in Maple that I don't know about.

@mmcdara  I need the answer to...

delvin 50
May 09 2023
0 0

@mmcdara 

I need the answer to the "eq" equation for a research work, I just use Maple for my work, maybe the solution I used is wrong!!!
How can I get the answer to the equation with a correct solution? Thank you for your guidance

@mmcdara   Thank you I want t...

delvin 50
May 08 2023
0 0

@mmcdara 

 Thank you
I want to get the unknown coefficients of the equation eq, but now the coefficients are zero!!!

 pseudo_degrees1.mw

@acer   ok,   I encount...

delvin 50
March 15 2023
0 0

@acer 

 ok,

 
I encountered a problem in getting the answer to this equation, the code does not run.

NULL

> 

restart;
A[1]:=-(q[2]-q[4])*(q[2]-q[3])*(q[1]-q[4])*(q[1]-q[3]):
A[2]:=(q[1]+q[2]-q[3]-q[4])*(2*q[1]*q[2]-q[1]*q[3]-q[1]*q[4]-q[2]*q[3]-q[2]*q[4]+2*q[3]*q[4]):
A[3]:=-2*q[1]^2-2*q[1]*q[2]+3*q[1]*q[3]+3*q[1]*q[4]-2*q[2]^2+3*q[2]*q[3]+3*q[2]*q[4]-6*q[3]*q[4]:
A[4]:=(q[1]-q[2]+q[3]-q[4])*(q[1]-q[2]-q[3]+q[4]):
A[5]:=(3*q[1]+3*q[2]-3*q[3]-3*q[4]):
A[6]:=(-q[1]-q[2]+q[3]+q[4]):
> 

eq:=A[1]*y(w)^2+A[2]*diff(y(w),w)*y(w)+A[3]*diff(y(w),w)^2+A[4]*diff(y(w),w$2)*y(w)+A[5]*diff(y(w),w$2)*diff(y(w),w)-3*diff(y(w),w$2)^2+A[6]*diff(y(w),w$3)*y(w)+2*diff(y(w),w$3)*diff(y(w),w)=0;

-(q[2]-q[4])*(q[2]-q[3])*(q[1]-q[4])*(q[1]-q[3])*y(w)^2+(q[1]+q[2]-q[3]-q[4])*(2*q[1]*q[2]-q[1]*q[3]-q[1]*q[4]-q[2]*q[3]-q[2]*q[4]+2*q[3]*q[4])*(diff(y(w), w))*y(w)+(-2*q[1]^2-2*q[1]*q[2]+3*q[1]*q[3]+3*q[1]*q[4]-2*q[2]^2+3*q[2]*q[3]+3*q[2]*q[4]-6*q[3]*q[4])*(diff(y(w), w))^2+(q[1]-q[2]+q[3]-q[4])*(q[1]-q[2]-q[3]+q[4])*(diff(diff(y(w), w), w))*y(w)+(3*q[1]+3*q[2]-3*q[3]-3*q[4])*(diff(diff(y(w), w), w))*(diff(y(w), w))-3*(diff(diff(y(w), w), w))^2+(-q[1]-q[2]+q[3]+q[4])*(diff(diff(diff(y(w), w), w), w))*y(w)+2*(diff(diff(diff(y(w), w), w), w))*(diff(y(w), w)) = 0

 (1)
> 

dsolve(eq,y(w))
> 

NULL


 

Download 2corrected_Ode_equation(1).mw

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