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  2. Futures and promises - Wikipedia

    en.wikipedia.org/wiki/Futures_and_promises

    The terms future, promise, delay, and deferred are often used interchangeably, although some differences in usage between future and promise are treated below. Specifically, when usage is distinguished, a future is a read-only placeholder view of a variable, while a promise is a writable, single assignment container which sets the value of the ...

  3. Flutter (software) - Wikipedia

    en.wikipedia.org/wiki/Flutter_(software)

    Flutter is an open-source UI software development kit created by Google. It can be used to develop cross platform applications from a single codebase for the web , [ 3 ] Fuchsia , Android , iOS , Linux , macOS , and Windows . [ 4 ]

  4. Time preference - Wikipedia

    en.wikipedia.org/wiki/Time_preference

    Temporal discounting (also known as delay discounting, time discounting) [12] is the tendency of people to discount rewards as they approach a temporal horizon in the future or the past (i.e., become so distant in time that they cease to be valuable or to have addictive effects). To put it another way, it is a tendency to give greater value to ...

  5. Discounted utility - Wikipedia

    en.wikipedia.org/wiki/Discounted_utility

    It is calculated as the present discounted value of future utility, and for people with time preference for sooner rather than later gratification, it is less than the future utility. The utility of an event x occurring at future time t under utility function u, discounted back to the present (time 0) using discount factor β, is

  6. Discrete-event simulation - Wikipedia

    en.wikipedia.org/wiki/Discrete-event_simulation

    The simulation must keep track of the current simulation time, in whatever measurement units are suitable for the system being modeled. In discrete-event simulations, as opposed to continuous simulations, time 'hops' because events are instantaneous – the clock skips to the next event start time as the simulation proceeds.

  7. Butterfly effect in popular culture - Wikipedia

    en.wikipedia.org/wiki/Butterfly_effect_in...

    The influence of the concept can be seen in the films The Terminator, Back to the Future, [4] [11] X-Men: Days of Future Past, [12] Dasavathaaram, Maheshinte Prathikaram and Cloud Atlas. [ 13 ] In the 1990 film Havana , the character played by Robert Redford states, "A butterfly can flutter its wings over a flower in China and cause a hurricane ...

  8. Google PageSpeed Tools - Wikipedia

    en.wikipedia.org/wiki/Google_PageSpeed_Tools

    Google PageSpeed is a family of tools by Google, Inc. [1] designed to help optimize website performance. [2] It was introduced at a Developer Conference in 2010. [3] [4] There are four main components of PageSpeed family tools:

  9. Wow (recording) - Wikipedia

    en.wikipedia.org/wiki/Wow_(recording)

    The terms "wow and flutter" are often referred to together, flutter being a higher-rate version of wow. Scrape flutter—a high-frequency flutter of above 1000 Hz—can sometimes occur from the tape vibrating as it passes over a head, as a result of rapidly interacting stretch in the tape and stiction at the head. It adds a roughness to the ...