How to set initial condition y(1)=1 in solving ODE using Simulink?

Can anyone guide me how can I set initial conditions for ODE in Simulink. It is easy to set Y(0)=0 or 1 in integerator. How to set Y(1)=1 in integrator.

I wanna solve dy/dt= (2/t) y , where y(1)=1 as initial condtions in Simulink.

[Aquatris]

If y(1) = 1 is your initial condition, it means your starting "time" is 1. Why not just set the integrator initial to 1 and offsett the time value whereever it appears in your equations?

[Yugal Maheshwari]

Yes, it works. Thanks!

Answer 1

[Akshay Khadse]

As Aquatris mentioned, the Start Time for simulation should be specified as 1 from the Configuration Parameters.

Then, you can specify the initial condition using any of the following methods:

1) Specify the Initial condition in the Integrator block parameters as 1. OR

2) Use Simulink.BlockDiagram.getInitialState as follows

x0 = Simulink.BlockDiagram.getInitialState(gcs);
x0{1}.Values.Data = 1;

Please refer the following documentation page to know more about the Simulink.BlockDiagram.getInitialState

https://www.mathworks.com/help/simulink/slref/simulink.blockdiagram.getinitialstate.html

[Yugal Maheshwari]

yes, it works. Thanks!