Just another update

Task/Arrays/Bracmat/arrays.bracmat

@@ -0,0 +1,11 @@
+( tbl$(mytable,100)
+& 5:?(30$mytable)
+& 9:?(31$mytable)
+& out$(!(30$mytable))
+& out$(!(-169$mytable))      { -169 mod 100 == 31 }
+& out$!mytable               { still index 31 }
+& tbl$(mytable,0)
+& (!mytable & out$"mytable still exists"
+  | out$"mytable is gone"
+  )
+);