I stumbled on a minor (?) `⍕` problem I `)dump`ed the results of a previous work (content irrelevant. Restore it, and examine these results :
``` )load Exp01dmp.apl DUMPED 2023-05-27 22:12:26 (GMT+2) ⍴bar 500 3 ``` A bit too large ; sample it : ``` ⍴sample←2↑[1]bar 2 3 ``` It's a vanilla numeric matrix : ``` 26⎕CR sample 16 32 32 16 32 32 sample 142 1.375974377E¯13 0.264 53 5.267033354E¯14 0.008 ``` It seems that trying to format it *fails!* This : ``` test←4 0 7 ¯3 7 ¯4⍕sample ``` **never** returns, and the `apl` process eats 100% of the time of one of my 8-core CPU. The only way to exit is to kill the `emacs` buffer where it runs : `emacs` asks for permission to kill the process (see below). Setup : Laptop : core i7, 16 GB RAM, Debian testing, `apl_1.8-1_amd64.deb` downloaded from the Gnu mirror. APL runs from `emacs` via the `inferior-mode` created by `gnu-apl` (from the `gnu-apl-mode` package). HTH, --<br> Emmanuel Charpentier