obj | : | { string, set, list, array, matrix} |
i | : | posint |
eq | : | uneval |
Returns: An expression sequence.
Synopsis: The op function strips off the outer-most square
brackets [,]
(list, array, matrix),
outer-most braces {,}
(set), or single quotes ('
)
(string).
Examples:
> op([1, [a, b], 4]); > op('hello there'); > op({1,2, {4, 5}, {7}});
When op is given two arguments, a posint i and an unevaluated expression eq, the function returns the ithoperand of eq.
Examples:
> z := noeval(var = integer); > op(1, z); op(2, z);
See also: period operator (.
)