### In Scala 2.8 and newer:

```
scala> def f (i : Int, j : Int) = i + j
f: (i: Int,j: Int)Int
// Note the underscore after the f
scala> val ff = f _
ff: (Int, Int) => Int = <function2>
scala> val fft = ff.tupled
fft: ((Int, Int)) => Int = <function1>
```

### In Scala 2.7:

```
scala> def f (i : Int, j : Int) = i + j
f: (Int,Int)Int
// Note the underscore after the f
scala> val ff = f _
ff: (Int, Int) => Int = <function>
scala> val fft = Function.tupled(ff)
fft: ((Int, Int)) => Int = <function>
```