Dérive

Derive or derived may refer to:

• Derive (computer algebra system), a commercial computer algebra system made by Texas Instruments
• Dérive, a psychogeographical term for spontaneous exploration of urban landscapes guided by aesthetic instinct
• dérive – Zeitschrift für Stadtforschung, an Austrian science magazine on urbanism
• Derived class, in object-oriented programming
• Derived category, in mathematics
• Derived set (mathematics)
• Derived row, in music theory
• Derived trait, in phylogenetics, a trait present in an organism, but absent in the last common ancestor of its group

In psychogeography, a dérive (, "drift") is an unplanned journey through a landscape, usually urban, on which the subtle aesthetic contours of the surrounding architecture and geography subconsciously direct the travellers, with the ultimate goal of encountering an entirely new and authentic experience. Situationist theorist Guy Debord defines the dérive as "a mode of experimental behavior linked to the conditions of urban society: a technique of rapid passage through varied ambiances." He also notes that "the term also designates a specific uninterrupted period of dériving."