| R | 
| r32 | function | prelude/prelude.fut | 
| r64 | function | prelude/prelude.fut | 
| radix_sort | function | lib/github.com/diku-dk/sorts/radix_sort.fut | 
| radix_sort_by_key | function | lib/github.com/diku-dk/sorts/radix_sort.fut | 
| radix_sort_float | function | lib/github.com/diku-dk/sorts/radix_sort.fut | 
| radix_sort_float_by_key | function | lib/github.com/diku-dk/sorts/radix_sort.fut | 
| radix_sort_int | function | lib/github.com/diku-dk/sorts/radix_sort.fut | 
| radix_sort_int_by_key | function | lib/github.com/diku-dk/sorts/radix_sort.fut | 
| real | module type | prelude/math.fut | 
| recip | function | prelude/math.fut | 
| reduce | function | prelude/soacs.fut | 
| reduce_by_index | function | prelude/soacs.fut | 
| reduce_by_index_2d | function | prelude/soacs.fut | 
| reduce_by_index_3d | function | prelude/soacs.fut | 
| reduce_comm | function | prelude/soacs.fut | 
| replicate | function | prelude/array.fut | 
| replicated_iota | function | lib/github.com/diku-dk/segmented/segmented.fut | 
| reverse | function | prelude/array.fut | 
| rotate | function | prelude/array.fut | 
| round | function | prelude/math.fut |