Closed-form expression
From Wiki @ Karl Jones dot com
In mathematics, a closed-form expression is a mathematical expression that can be evaluated in a finite number of operations.
Description
It may contain constants, variables, certain "well-known" operations (e.g., + − × ÷), and functions (e.g., nth root, exponent, logarithm, trigonometric functions, and inverse hyperbolic functions), but usually no limit.
The set of operations and functions admitted in a closed-form expression may vary with author and context.
Problems are said to be tractable if they can be solved in terms of a closed-form expression.
See also
- Algebraic solution
- Computer simulation
- Elementary function
- Finitary operation
- Liouvillian function
- Numerical analysis
- Symbolic regression
- Term (logic)
External links
- Closed-form expression @ Wikipedia
