(n ) a variable, especially in a DO-loop, that appears only on the right side of an equals sign The variable is read only, it is never assigned a new value
An assertion that should be true of an object at all times (except maybe while the object is being modified)
persistent in occurrence and unvarying in nature; "maintained a constant temperature"; "a constant beat"; "principles of unvarying validity"; "a steady breeze"
An assertion that should always be true for a specified segment or at a specified point of a computer program From [IEEE90]
An invariable quantity; specifically, a function of the coefficients of one or more forms, which remains unaltered, when these undergo suitable linear transformations
In topology, a number, polynomial, or other quantity associated to a topological object such as a knot or 3-manifold which depends only on the underlying object and not on its specific description or presentation
an assertion that must be true both before and after the execution of each operation (e g , application use case, class method) See also postcondition and precondition
Having a variance of zero An invariant assemblage can exist only at a unique point in pressure-temperature-composition space, and projects to a point in the P-T projection of a system A non-degenerate invariant point involves c+2 phases, where c in the number of components in the system (so 4 phases in a binary system)
In mathematics, a fixed point (sometimes shortened to fixpoint, also known as an invariant point) of a function is a point that is mapped to itself by the function
(Elektrik, Elektronik) A time-invariant system (often refered to equivalently as a shift-invariant) is system for which a time shift or delay of the input sequence causes a corresponding shift in the output sequence
(Elektrik, Elektronik) A time-invariant system (often refered to equivalently as a shift-invariant) is system for which a time shift or delay of the input sequence causes a corresponding shift in the output sequence