Functional

• Form follows function
• Function (disambiguation)
• Functional (C++)
• Functional (mathematics)
• Functional analysis
• Functional classification
• Functional design
• Functional grammar (disambiguation)
• Functional group
• Functional group (disambiguation)
• Functional model
• Functional organization
• Functional programming
• Functional symptom
• Functional training
• Functionalism (architecture)
• Functionalism (disambiguation)
• Higher-order function
• Linear functional
• functional disorder
• ontology (information science)