~~NOTOC~~
<= [[4rpl:start| Index]] \\
<= [[4rpl:start#Flow Control]] 



====== K ======
K

===== Description =====
Outer loop index. When “do” loops are nested, this pushes the value of the third-innermost loop onto the stack. Do not use outside of triply-nested loops.

Note that before the inner loops begin, after they end, or between inner loops, this value may need to be referred to with J or even I.

===== Examples =====
<code 4rpl>
do(2 1)
    do(4 3)
        do(6 5)
            I J K Trace3
        loop
    loop
loop
</code>
<=[[4rpl:start| Index]]