**Modal** may refer to:

- Modal (textile), a textile made from spun Beechwood cellulose fiber
- Modal analysis, the study of the dynamic properties of structures under vibrational excitation
- Modal bandwidth, in the discipline of telecommunications, refers to the signalling rate per distance unit
- Modal haplotype, an ancestral haplotype derived from the DNA test results of a specific group of people
- Modal jazz, jazz that uses musical modes rather than chord progressions as a harmonic framework
- Modal logic, a type of formal logic that extends the standards of formal logic to include the elements of modality
- Modal matrix, used in the diagonalization process involving eigenvalues and eigenvectors
- Modal phenomena
- Modal administration, used in Federal Agencies to describe sub-offices or "modes"
- Modal transportation, used in transit to describe multiple modes of transit available such as bus, trolley, train, ferry
- Modal score, used in testing and education for the most common score
- Modal verb, a type of auxiliary verb that is used to indicate modality
- Modal window, a child window that requires users to interact with it before they can return to operating the parent application
- Mode (disambiguation)
- Modality (disambiguation)
- Musical mode, a concept that involves scale and melody type

### Other articles related to "modal":

**Modal**Algebra

... In algebra and logic, a

**modal**algebra is a structure such that is a Boolean algebra, is a unary operation on A satisfying and for all x, y in A ...

**Modal**algebras provide models of propositional

**modal**logics in the same way as Boolean algebras are models of classical logic ... In particular, the variety of all

**modal**algebras is the equivalent algebraic semantics of the

**modal**logic K in the sense of abstract algebraic logic, and the ...

Counterpart Theory - Differences From The Kripkean View

... The standard account of possible worlds assumes that a

... The standard account of possible worlds assumes that a

**modal**statement about an individual (e.g ... formalization, counterpart theoretic formalization of**modal**discourse also departs from the standard formulation by eschewing use of modality operators (Necessarily, Possibly ... and a number of axioms governing CT and a scheme for translating standard**modal**claims in the language of quantified**modal**logic into his CT ...S5 (

... In logic and philosophy, S5 is one of five systems of

**modal**Logic)... In logic and philosophy, S5 is one of five systems of

**modal**logic proposed by Clarence Irving Lewis and Cooper Harold Langford in their 1932 book Symbolic Logic ... It is a normal**modal**logic, and one of the oldest systems of**modal**logic of any kind ...**Modal**Matrix

... In linear algebra, the

**modal**matrix is used in the diagonalization process involving eigenvalues and eigenvectors ... Specifically the

**modal**matrix M is the n×n matrix formed with the eigenvectors of A as columns in M ... are arranged left→right into M) Note that the

**modal**matrix M provides the conjugation to make A and D similar matrices ...

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