478
@code{product (f(i), i, a, b) = 1/product (f(i), i, b+1, a-1)} is applied
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For example, @code{product (f(i), i, 3, 1)} yields @code{1/f(2)}.
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473
@deffn {Function} radcan (@var{expr})
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474
Simplifies @var{expr}, which can contain logs, exponentials, and
486
475
radicals, by converting it into a form which is canonical over a large