syntactically a verb should return a noun. But for your case it return a verb so
that it raise a syntax error. compare with this
foo=: 3 : ']'
foo 1
|syntax error: foo
| foo 1
Anssi Seppälä wrote:
Thank you for the helpfull discussion. Originally I had the sequence in
a function. I got "syntax error" at the end of the function mean_power.
That did no tell much for me and I spent a long time to find what was
wrong.
Because I use very rarely such assignment of verbs in my J programs, the
first idea I had after realising what is behind this "syntax error" was
that I wanted to say to J intepreter temporarily for this application:
"Do not accept such verb definitions. Give me a value error instead".
Anssi
At 05:56 3.6.2007, you wrote:
That said, another useful technique for finding
undefined tacit verbs is to bring up the debugger,
and look at a stack trace. This will identify the
verb whose definition contains the reference to
the undefined verb.
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regards,
bill
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