# How to plot stream lines of an ODE with one single variable?

I want to see the stream line plot for y' = -sin(x).

The solution of this ODE is coded as:

```
x = var('x')
y = function('y')(x)
de = diff(y,x) == -sin(x)
h = desolve(de,y)
solution = h.function(x)
show(solution)
```

I can produce the desired slope field ad hoc like this:

```
f(x,y)= - sin(x)
streamline_plot(f(x,y),(x,-10,10),(y,-5,5))
```

However, I am not able to get the right expression in the code for the stream line plot using the functions already defined above: `h`

, `solution`

or `y`

**What would be the more natural expression for the general (and a particular solution) plots?**