Dear All,

I’m transferring from Matlab to Julia to solve delayed differential equations.

I read documentation and notice it says define state-dependent delay by

```
prob = DDEProblem(bc_model,u0,h,tspan; dependent_lags = ((u,p,t) -> tau,))
```

but how can I define tau with time t?

for example: lag = sin(t)?

Thank you very much!