closed form

1. (countable, uncountable)A form (expression) that does not use limits, implicitly or explicitly.

   There is no known representation of π in closed form: each expression for it includes an integral, an infinite series, or an infinite continued fraction.

   geschlossene Form

2. (countable, uncountable)A differential form whose exterior derivative is zero.

   geschlossene Form

3. (countable, uncountable)A type of poetry with regular structure, such as meter or a rhyming pattern.

4. (countable, uncountable)Trobar clus.

5. (countable, uncountable)Used other than figuratively or idiomatically: see closed, form.

   If ω is a closed form, then dω=0.

regular