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Classification scheme (information science), eg a thesaurus, a taxonomy, a data model or an ontology; Scheme (mathematics), a concept in algebraic geometry; Scheme (rhetoric), a figure of speech that changes a sentence's structure; Scam, an attempt to swindle or cheat people through deception; Scheme, a type of government program in India
A pyramid scheme is a form of fraud similar in some ways to a Ponzi scheme, relying as it does on a mistaken belief in a nonexistent financial reality, including the hope of an extremely high rate of return.
In information science and ontology, a classification scheme is an arrangement of classes or groups of classes. The activity of developing the schemes bears similarity to taxonomy, but with perhaps a more theoretical bent, as a single classification scheme can be applied over a wide semantic spectrum while taxonomies tend to be devoted to a single topic.
The formal definition of a database schema is a set of formulas (sentences) called integrity constraints imposed on a database. [citation needed] These integrity constraints ensure compatibility between parts of the schema. All constraints are expressible in the same language.
Scheme specifies a comparatively full set of numerical datatypes including complex and rational types, which is known in Scheme as the numerical tower (R5RS sec. 6.2 [4]). The standard treats these as abstractions, and does not commit the implementor to any particular internal representations. Numbers may have the quality of exactness.
For a scheme Y, a scheme X over Y (or a Y-scheme) means a morphism X → Y of schemes. A scheme X over a commutative ring R means a morphism X → Spec(R). An algebraic variety over a field k can be defined as a scheme over k with certain properties. There are different conventions about exactly which schemes should be called varieties.
Well, it does. But it’s not the only consideration. Say you’re 67 years old, with $1.5 million in retirement savings, including your 401(k), investment retirement account (IRA) and other ...
Common Lisp does not support re-entrant continuations, but does support several ways of handling escape continuations. Often, the same algorithm can be expressed in Lisp in either an imperative or a functional style. As noted above, Scheme tends to favor the functional style, using tail recursion and continuations to express control flow.