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  2. Time-scale calculus - Wikipedia

    en.wikipedia.org/wiki/Time-scale_calculus

    A time scale (or measure chain) is a closed subset of the real line. The common notation for a general time scale is T {\displaystyle \mathbb {T} } . The two most commonly encountered examples of time scales are the real numbers R {\displaystyle \mathbb {R} } and the discrete time scale h Z {\displaystyle h\mathbb {Z} } .

  3. Discrete time and continuous time - Wikipedia

    en.wikipedia.org/wiki/Discrete_time_and...

    A variable measured in discrete time can be plotted as a step function, in which each time period is given a region on the horizontal axis of the same length as every other time period, and the measured variable is plotted as a height that stays constant throughout the region of the time period. In this graphical technique, the graph appears as ...

  4. Wikipedia:Timeline syntax - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Timeline_syntax

    The script commands define: Overall layout: ImageSize, PlotArea, Colors, BackgroundColors, AlignBars; Interpretation and presentation of dates and periods: DateFormat ...

  5. Temporal discretization - Wikipedia

    en.wikipedia.org/wiki/Temporal_discretization

    In applied physics and engineering, temporal discretization is a mathematical technique for solving transient problems, such as flow problems.. Transient problems are often solved using computer-aided engineering (CAE) simulations, which require discretizing the governing equations in both space and time.

  6. Time scale - Wikipedia

    en.wikipedia.org/wiki/Time_scale

    Time scale may refer to: Time standard, a specification of either the rate at which time passes, points in time, or both; A duration or quantity of time: Orders of magnitude (time) as a power of 10 in seconds; A specific unit of time; Geological time scale, a scale that divides up the history of Earth into scientifically meaningful periods

  7. Sentence (mathematical logic) - Wikipedia

    en.wikipedia.org/wiki/Sentence_(mathematical_logic)

    is a sentence. This sentence means that for every y, there is an x such that =. This sentence is true for positive real numbers, false for real numbers, and true for complex numbers. However, the formula (=) is not a sentence because of the presence of the free variable y.

  8. Scaled correlation - Wikipedia

    en.wikipedia.org/wiki/Scaled_correlation

    Scaled correlation between two signals is defined as the average correlation computed across short segments of those signals. First, it is necessary to determine the number of segments that can fit into the total length of the signals for a given scale :

  9. Self-similar solution - Wikipedia

    en.wikipedia.org/wiki/Self-similar_solution

    Self-similar solutions appear whenever the problem lacks a characteristic length or time scale (for example, the Blasius boundary layer of an infinite plate, but not of a finite-length plate). These include, for example, the Blasius boundary layer or the Sedov–Taylor shell .