Transposing a static array

[maik klein via Digitalmars-d-learn]

On Saturday, 20 February 2016 at 02:22:12 UTC, Ali Çehreli wrote:
> On 02/19/2016 06:00 PM, maik klein wrote:
>> How would I transpose
>>
>> float[3][2]
>>
>> to
>>
>> float[2][3]
>>
>> with http://dlang.org/phobos/std_range.html#.transposed
>>
>>
>
> Because static arrays are not ranges, they must be used as 
> slices with the help of []. The following code does the same 
> thing in two different ways:
>
> import std.stdio;
> import std.range;
> import std.algorithm;
>
> void main() {
>     float[3][2] arr = [ [1, 2, 3],
>                         [4, 5, 6] ];
>
>     // Method A
>     {
>         float[][] arr2;
>
>         foreach (ref a; arr) {
>             arr2 ~= a[];
>         }
>
>         writeln(arr2.transposed);
>     }
>
>     // Method B
>     {
>         auto r = arr[].map!((ref a) => a[]).array.transposed;
>         writeln(r);
>     }
> }
>
> Ali

Your "Method B" is how I did it too but how do I convert it back 
to a static array of float[2][3]?