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2. Domain (mathematical analysis) - Wikipedia

   en.wikipedia.org/wiki/Domain_(mathematical_analysis)

   In complex analysis, a complex domain (or simply domain) is any connected open subset of the complex plane C. For example, the entire complex plane is a domain, as is the open unit disk, the open upper half-plane, and so forth. Often, a complex domain serves as the domain of definition for a holomorphic function.

3. Fictitious domain method - Wikipedia

   en.wikipedia.org/wiki/Fictitious_domain_method

   Assume in some area we want to find solution () of the equation: = (), = (,, …,) with boundary conditions: = (), The basic idea of fictitious domains method is to substitute a given problem posed on a domain , with a new problem posed on a simple shaped domain containing ().

4. Range of a function - Wikipedia

   en.wikipedia.org/wiki/Range_of_a_function

   with domain, the range of , sometimes denoted ⁡ or ⁡ (), [4] may refer to the codomain or target set (i.e., the set into which all of the output of is constrained to fall), or to (), the image of the domain of under (i.e., the subset of consisting of all actual outputs of ). The image of a function is always a subset of the codomain of the ...

5. Wide Range Achievement Test - Wikipedia

   en.wikipedia.org/wiki/Wide_Range_Achievement_Test

   The Wide Range Achievement Test, currently in its fifth edition (WRAT5), is an achievement test which measures an individual's ability to read words, comprehend sentences, spell, and compute solutions to math problems. [1] The test is appropriate for individuals aged 5 years through adult.

6. Closed range theorem - Wikipedia

   en.wikipedia.org/wiki/Closed_range_theorem

   In the mathematical theory of Banach spaces, the closed range theorem gives necessary and sufficient conditions for a closed densely defined operator to have closed range. The theorem was proved by Stefan Banach in his 1932 Théorie des opérations linéaires .

7. Moment (mathematics) - Wikipedia

   en.wikipedia.org/wiki/Moment_(mathematics)

   In mathematics, the moments of a function are certain quantitative measures related to the shape of the function's graph.If the function represents mass density, then the zeroth moment is the total mass, the first moment (normalized by total mass) is the center of mass, and the second moment is the moment of inertia.