how could i solve this ode system in simulink?

hi how could i solve this system in simulink?

Dx=(1-(x^2+y^2)^0.5)*x -y Dy=(1-(x^2+y^2)^0.5)*y +x

[Walter Roberson]

Please use better tags for this question see http://www.mathworks.co.uk/matlabcentral/answers/43073-a-guide-to-tags

[reza foodeh]

i know,i did this,but at the end,the value of x & y become 0 !! i dont know why! because i think its a system of ode and in each of equation it have x and y

Answer 1

[Ryan G]

See the blog post about building odes in simulink.

Essentially, what you need to do is create the right hand side of the equations in blocks, and feed that will create Dx. Feed that into an integrator and the output of the integrator is x. Same thing for Dy and y.

The link above demonstrates how this is done visually.