title: How to create a 2-dimensional unboxed array from a list of 1-dimensional ones?
body: <p>Repa has <a href="https://hackage.haskell.org/package/repa-3.4.0.2/docs/Data-Array-Repa-Repr-Unboxed.html#v:fromListUnboxed" rel="nofollow"><code>fromListUnboxed</code></a> that allows to create a 1-dimensional array from a list of values. But how can I create a 2-dimensional one given a list of 1-dimensional unboxed ones (of equal lengths)?</p>