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Mutual recursion: Difference between revisions
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→{{header|REXX}}: added some comments. -- ~~~~
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=={{header|REXX}}==
<lang rexx>/*REXX program to show mutual recursion. */
arg limit .; if limit='' then limit=40▼
▲if limit='' then limit=40
▲ do j=0 to limit
▲ say 'F('right(j,2)")="right(F(j),9) ' M('right(j,2)")="right(M(j),9)
▲ end
exit
/*─────────────────────────────────────F & M subroutines─────────────*/
F: procedure; parse arg n; if n==0 then return 1; return n-M(F(n-1))
M: procedure; parse arg n; if n==0 then return 0; return n-F(M(n-1))</lang>
▲Output (using the default of 40):
<pre style="height:30ex;overflow:scroll">
F( 0)= 1 M( 0)= 0
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