Lah numbers: Difference between revisions

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 <lang J>
 NB. use:   k lah n
-lah=: ! :(!&<: * %&!~)&x:  NB. %~ is shorter than *inv
+lah=: ! :(!&<: * %&!~)&x:  NB. `%~' is shorter than `*inv'
+NB. wory_lah translates lah to algebraic English.
 Monad =: :[:  NB. permit only a y argument
 Dyad =: [: :  NB. require x and y arguments
@@ Line 479: / Line 480: @@
 times =: *  Dyad
 extend_precision =: x: Monad
-wordy_lah =: (combinations but_1st decrement times into but_1st factorial)but_1st extend_precision Dyad
+wordy_lah =: ((combinations but_1st decrement) times (into but_1st factorial))but_1st extend_precision Dyad
 </lang>
 <pre>