How can i get output?

>> syms y(x)

ode=diff(y,x)==x-1/y

ode(x) =

diff(y(x), x) == x - 1/y(x)

>> ySol(x)=dsolve(ode)

경고: 기호 해를 구할 수 없습니다.

> dsolve (209번 라인)번 라인에서

ySol(x) =

[ empty sym ]

how can i get the answer of "ySol(x)="?

Answer 1

[charan]

Hello,

I understand that you are trying to solve a differential equation using “dsolve” but you are getting an empty sym.

This is because the system you have provided has no solution. If you are expecting a solution, then maybe your equation missed a bracket and is (instead of x-1/y) as follows:

eqn=diff(y,x)==(x-1)/y;

This equation has solutions, and they are:

ySol(x) =

(x^2 - 2*x + C1)^(1/2)

-(x^2 - 2*x + C1)^(1/2)

You can refer to the below documentation to learn more about “dsolve”:

Solve system of differential equations - MATLAB dsolve - MathWorks India

Thanks,

Charan