Hi,
The reason why Flow control doesn't suit explicit J is obviously because
batch processing languages were left to right and explicit J is right to
left. The simplest solution is to turn flow control into right to left
grammar.
signum=:
( else _1 if. y < 0
else 0 if. y=0
1)
signum=:
( 1 else 0 if. y=0 else _1 if. y < 0)
sumint=:
(k=.0
s=.0
(s=.s+k while. k<: ]
k=.k+1)
s)
fac=:
( t =. ]
else 1 if. t <: 1
t * fac t – 1)
fact=:
r =. 1
t =. ]
(r =. r * t while. t > 1
t =. t - 1)
r)
Don
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