Y combinator: Difference between revisions
Content deleted Content added
Add bruijn |
|||
Line 1,229: | Line 1,229: | ||
fib(9)=34 |
fib(9)=34 |
||
fib(10)=55</pre> |
fib(10)=55</pre> |
||
=={{header|Bruijn}}== |
|||
As defined in <code>std/Combinator</code>: |
|||
<syntaxhighlight lang="bruijn"> |
|||
:import std/Number . |
|||
# sage bird combinator |
|||
y [[1 (0 0)] [1 (0 0)]] |
|||
# factorial using y |
|||
factorial y [[=?0 (+1) (0 ⋅ (1 --0))]] |
|||
:test ((factorial (+6)) =? (+720)) ([[1]]) |
|||
# (very slow) fibonacci using y |
|||
fibonacci y [[0 <? (+1) (+0) (0 <? (+2) (+1) rec)]] |
|||
rec (1 --0) + (1 --(--0)) |
|||
:test ((fibonacci (+6)) =? (+8)) ([[1]]) |
|||
</syntaxhighlight> |
|||
=={{header|C}}== |
=={{header|C}}== |