Logo is not case-sensitive but retains the case used for formatting purposes. Logo is usually an interpreted language, although compiled Logo dialects (such as Lhogho and Liogo) have been developed. There is no standard Logo, but UCBLogo has the best facilities for handling lists, files, I/O, and recursion in scripts, and can be used to teach all computer science concepts, as UC Berkeley lecturer Brian Harvey did in his Computer Science Logo Style trilogy. Logo is a multi-paradigm adaptation and dialect of Lisp, a functional programming language.

There are substantial differences among the many dialects of Logo, and the situation is confused by the regular appearance of turtle graphics programs that are named Logo. The language was conceived to teach concepts of programming related to Lisp and only later to enable what Papert called ' body-syntonic reasoning', where students could understand, predict, and reason about the turtle's motion by imagining what they would do if they were the turtle. Logo is not an acronym: the name was coined by Feurzeig while he was at Bolt, Beranek and Newman, and derives from the Greek logos, meaning word or thought.Ī general-purpose language, Logo is widely known for its use of turtle graphics, in which commands for movement and drawing produced line or vector graphics, either on screen or with a small robot termed a turtle. Logo is an educational programming language, designed in 1967 by Wally Feurzeig, Seymour Papert, and Cynthia Solomon. Symmetry around a point can be obtained using only a few instructions, allowing users to draw hypotrochoids like the one shown here. Wally Feurzeig, Seymour Papert, Cynthia SolomonĪgentSheets, NetLogo, Smalltalk, Etoys, Scratch, Microsoft Small Basic, KTurtle, REBOL, Boxer

Multi-paradigm: functional, educational, procedural, reflective

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