Hi,

How can we convert a coordinates to an index?

I’m using the awesome NArray library with some arrays of 1, 2, 3, or

more dimensions. For instance, if we consider this 3x3 array of 2

dimensions …

```
NArray.int(3,3):
[ [ 0, 0, 0 ],
[ 0, 0, 0 ],
[ 0, 0, 0 ] ]
```

… the square of the coordinate [0,1] have also the index of 3 (and

according to the NArray specs, a[3] is same as a[0,1] if a is 3x3

array).

Is there a simple way to find the index, from the coordinates?

Many thanks,

Sa-