I’m trying to learn parallel computing using `Distributed`

and I tried the `Pi`

computation as an example:

```
using Distributed
addprocs(4)
function points_inside(n)
n_in= 0
for i=1:n
x,y= rand(), rand()
n_in+= (x*x+ y*y)<= 1
end
return n_in
end
```

points_inside (generic function with 1 method)

In [8]:

```
function pi_p(n)
p= nworkers()
n_in= @distributed(+) for i=1:p
points_inside(n/p)
end
return 4*n_in/n
end
```

and I get this syntax error:

```
syntax: "function" at In[8]:1 expected "end", got "for"
Stacktrace:
[1] top-level scope
@ In[8]:3
[2] eval
@ ./boot.jl:373 [inlined]
[3] include_string(mapexpr::typeof(REPL.softscope), mod::Module, code::String, filename::String)
@ Base ./loading.jl:1196
```