I have been asked by some APL colleagues about
index origin 0 in J. The question is, does the choice
of a fixed value of 0 for index origin a hindrance to
your work? The question is specifically addressed
to "ordinary domain experts", people with no
software engineering in their background and are not
professional mathematicians.
In case you did not know, in APL there is a choice
known as the index origin, controlled by the variable
quad-io, of counting from 1 instead of from 0, affecting
the left argument of { and the result of i. , among other things.
I will say no more than this to avoid biasing your answers.
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