An interpreter curiosity:

   1b_    NB. j interpreter curiosity  6.02 64 linux
0
   1r__
0
   1b_   1r__
|ill-formed number


The rational numbers of these examples are beyond the defined scope
"...digits followed by an r followed by further digits denote a rational
number."



   NB. Terrific!  pc_rdm3 handles a mess.
   ".(,'-', pc_rdm3)'2r3x1ar_4r5e0b1.3a2'
_1.332e_15j_8.882e_16


   NB. tolower of nu...@tolower is incorrectly global
   1bA
|ill-formed number
   
   pc_rdm3'1bA'
(('0123456789a'i.'a')#.~])10#.'01'i.'1'



   1b_    NB. j interpreter curiosity  6.02 64 linux
0
   1r__
0
   1b_   1r__
|ill-formed number

   pc_rdm3'1b_'
|assertion failure: assert
|       pc_rdm3'1b_'

   pc_rdm3'1r__' NB. outside dictionary definition.
|assertion failure: assert
|       pc_rdm3'1r__'



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