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  2. Java syntax - Wikipedia

    en.wikipedia.org/wiki/Java_syntax

    A type import declaration allows a named type to be referred to by a simple name rather than the full name that includes the package. Import declarations can be single type import declarations or import-on-demand declarations. Import declarations must be placed at the top of a code file after the package declaration.

  3. Mass-spring-damper model - Wikipedia

    en.wikipedia.org/wiki/Mass-spring-damper_model

    Classic model used for deriving the equations of a mass spring damper model. The mass-spring-damper model consists of discrete mass nodes distributed throughout an object and interconnected via a network of springs and dampers. This model is well-suited for modelling object with complex material properties such as nonlinearity and viscoelasticity.

  4. Stepped reckoner - Wikipedia

    en.wikipedia.org/wiki/Stepped_reckoner

    The stepped reckoner or Leibniz calculator was a mechanical calculator invented by the German mathematician Gottfried Wilhelm Leibniz (started in 1673, when he presented a wooden model to the Royal Society of London [2] and completed in 1694). [1]

  5. Spring system - Wikipedia

    en.wikipedia.org/wiki/Spring_system

    A 2-dimensional spring system. In engineering and physics, a spring system or spring network is a model of physics described as a graph with a position at each vertex and a spring of given stiffness and length along each edge. This generalizes Hooke's law to higher dimensions.

  6. Maxwell material - Wikipedia

    en.wikipedia.org/wiki/Maxwell_material

    Diagram of a Maxwell material. The Maxwell model is represented by a purely viscous damper and a purely elastic spring connected in series, [4] as shown in the diagram. If, instead, we connect these two elements in parallel, [4] we get the generalized model of a solid Kelvin–Voigt material.

  7. Curta - Wikipedia

    en.wikipedia.org/wiki/Curta

    A partially disassembled Curta calculator, showing the digit slides and the stepped drum behind them Curta Type I calculator, top view Curta Type I calculator, bottom view. The Curta is a hand-held mechanical calculator designed by Curt Herzstark. [1] It is known for its extremely compact design: a small cylinder that fits in the palm of the hand.

  8. UML state machine - Wikipedia

    en.wikipedia.org/wiki/UML_state_machine

    A pocket calculator (left) and the traditional state machine with multiple transitions Clear and Off (right) UML state machines address exactly this shortcoming of the conventional FSMs. They provide a number of features for eliminating the repetitions so that the complexity of a UML state machine no longer explodes but tends to faithfully ...

  9. Logistic map - Wikipedia

    en.wikipedia.org/wiki/Logistic_map

    When drawing a bifurcation diagram for the logistic map, we have a straight line representing the fixed point = and a straight line representing the fixed point = / It can be seen that the curves representing a and b intersect at r = 1, and that stability is switched between the two. Bifurcation diagram of the logistic map for parameters 0 to 3.