| U | Data.Array.Repa.Repr.Unboxed, Data.Array.Repa | 
| Unbox | Data.Array.Repa.Repr.Unboxed | 
| unitDim | Data.Array.Repa.Shape, Data.Array.Repa | 
| unsafeBackpermute | Data.Array.Repa.Operators.IndexSpace, Data.Array.Repa.Unsafe | 
| unsafeBackpermuteDft | Data.Array.Repa.Operators.IndexSpace, Data.Array.Repa.Unsafe | 
| unsafeExtend | Data.Array.Repa.Operators.IndexSpace, Data.Array.Repa.Unsafe | 
| unsafeFreezeMVec | Data.Array.Repa.Eval | 
| unsafeIndex | Data.Array.Repa | 
| unsafeLinearIndex | Data.Array.Repa | 
| unsafeSlice | Data.Array.Repa.Operators.IndexSpace, Data.Array.Repa.Unsafe | 
| unsafeTraverse | Data.Array.Repa.Operators.Traversal, Data.Array.Repa.Unsafe | 
| unsafeTraverse2 | Data.Array.Repa.Operators.Traversal, Data.Array.Repa.Unsafe | 
| unsafeTraverse3 | Data.Array.Repa.Operators.Traversal, Data.Array.Repa.Unsafe | 
| unsafeTraverse4 | Data.Array.Repa.Operators.Traversal, Data.Array.Repa.Unsafe | 
| unsafeWriteMVec | Data.Array.Repa.Eval | 
| unzip | Data.Array.Repa.Repr.Unboxed | 
| unzip3 | Data.Array.Repa.Repr.Unboxed | 
| unzip4 | Data.Array.Repa.Repr.Unboxed | 
| unzip5 | Data.Array.Repa.Repr.Unboxed | 
| unzip6 | Data.Array.Repa.Repr.Unboxed |