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  2. Tandem rolling mill - Wikipedia

    en.wikipedia.org/wiki/Tandem_rolling_mill

    Excel plot of the measured bearing speed effect data and curve matching those points. For a more accurate measurement, the force of each mill stand is measured as it is run through its speed range without strip present. The values measured from Chart 2 were plotted in an Excel spreadsheet.

  3. Microsoft Excel - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Excel

    A chart created with data from a Microsoft Excel spreadsheet that only saves the chart. To save the chart and spreadsheet save as .XLS. XLC is not supported in Excel 2007 or in any newer versions of Excel. Dialog .xld: Used in older versions of Excel. Archive .xlk: A backup of an Excel Spreadsheet Add-in (DLL) .xll

  4. External ballistics - Wikipedia

    en.wikipedia.org/wiki/External_ballistics

    The Excel application then employs custom macroinstructions to calculate the trajectory variables of interest. A modified 4th order Runge–Kutta integration algorithm is used. Like Pejsa, Colonel Manges claims center-fired rifle accuracies to the nearest one tenth of an inch for bullet position, and nearest foot per second for the projectile ...

  5. Finite element method - Wikipedia

    en.wikipedia.org/wiki/Finite_element_method

    The following two problems demonstrate the finite element method. P1 is a one-dimensional problem : {″ = (,), = =, where is given, is an unknown function of , and ″ is the second derivative of with respect to .

  6. Branch predictor - Wikipedia

    en.wikipedia.org/wiki/Branch_predictor

    In computer architecture, a branch predictor [1] [2] [3] [4] [5] is a digital circuit that tries to guess which way a branch (e.g., an if–then–else structure ...

  7. Stefan–Boltzmann law - Wikipedia

    en.wikipedia.org/wiki/Stefan–Boltzmann_law

    Total emitted energy, , of a black body as a function of its temperature, . The upper (black) curve depicts the Stefan–Boltzmann law, M ∘ = σ T 4 {\displaystyle M^{\circ }=\sigma \,T^{4}} . The lower (blue) curve is total energy according to the Wien approximation , M W ∘ = M ∘ / ζ ( 4 ) ≈ 0.924 σ T 4 {\displaystyle M_{W}^{\circ ...

  8. Proportional–integral–derivative controller - Wikipedia

    en.wikipedia.org/wiki/Proportional–integral...

    A block diagram of a PID controller in a feedback loop. r(t) is the desired process variable (PV) or setpoint (SP), and y(t) is the measured PV. The distinguishing feature of the PID controller is the ability to use the three control terms of proportional, integral and derivative influence on the controller output to apply accurate and optimal ...

  9. Wikipedia:Vital articles/Level/5/Technology - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Vital_articles/...

    Vital articles is a list of subjects for which Wikipedia should have corresponding high-quality articles. It serves as a centralized watchlist to track the status of Wikipedia's most essential articles.