Closed form

• Closed-form expression, a finitary expression
• Closed differential form, a differential form $\backslash alpha$ whose exterior derivative $d\backslash alpha$ is the zero form $0$, meaning $d\backslash alpha\; =\; 0$.

• In poetry analysis, a type of poetry that exhibits regular structure, such as meter or a rhyming pattern
• Trobar clus, an allusive and obscure style adopted by some 12th-century troubadours

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Category:Mathematics disambiguation pages