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  2. Form W-4 - Wikipedia

    en.wikipedia.org/wiki/Form_W-4

    Form W-4, 2012. Form W-4 (officially, the "Employee's Withholding Allowance Certificate") [1] is an Internal Revenue Service (IRS) tax form completed by an employee in the United States to indicate his or her tax situation (exemptions, status, etc.) to the employer. The W-4 form tells the employer the correct amount of federal tax to withhold ...

  3. Form 4 - Wikipedia

    en.wikipedia.org/wiki/Form_4

    Form 4 is a United States SEC filing that relates to insider trading.Every director, officer and owner of more than 10 percent of a class of a particular company's equity securities registered under Section 12 of the Securities Exchange Act of 1934 must file with the United States Securities and Exchange Commission a statement of ownership regarding such security.

  4. Microsoft Excel - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Excel

    Microsoft Excel is a spreadsheet editor developed by Microsoft for Windows, macOS, Android, iOS and iPadOS.It features calculation or computation capabilities, graphing tools, pivot tables, and a macro programming language called Visual Basic for Applications (VBA).

  5. Split graph - Wikipedia

    en.wikipedia.org/wiki/Split_graph

    In this case, G has a unique partition (C, i) into a clique and an independent set, C is the maximum clique, and i is the maximum independent set. Some other optimization problems that are NP-complete on more general graph families, including graph coloring , are similarly straightforward on split graphs.

  6. Tree crown measurement - Wikipedia

    en.wikipedia.org/wiki/Tree_crown_measurement

    Of particular interest is the parabolic curve. A spreadsheet application of this for parabolic curves has been developed by NTS. The spreadsheet fits a parabola to 4 or more points (up to 10 allowed) using the least squares method and then calculates the limb length (s) using Simpson's Rule to evaluate the definite integral. [18] [19]

  7. Two-line element set - Wikipedia

    en.wikipedia.org/wiki/Two-line_element_set

    A two-line element set (TLE, or more rarely 2LE) or three-line element set (3LE) is a data format encoding a list of orbital elements of an Earth-orbiting object for a given point in time, the epoch. Using a suitable prediction formula, the state (position and velocity) at any point in the past or future can be estimated to some accuracy.

  8. Stark effect - Wikipedia

    en.wikipedia.org/wiki/Stark_effect

    The Stark effect is the shifting and splitting of spectral lines of atoms and molecules due to the presence of an external electric field. It is the electric-field analogue of the Zeeman effect, where a spectral line is split into several components due to the presence of the magnetic field. Although initially coined for the static case, it is ...

  9. Semi-log plot - Wikipedia

    en.wikipedia.org/wiki/Semi-log_plot

    In other words, F is proportional to the logarithm of x times the slope of the straight line of its lin–log graph, plus a constant. Specifically, a straight line on a lin–log plot containing points (F 0, x 0) and (F 1, x 1) will have the function: