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  2. Windows 10 editions - Wikipedia

    en.wikipedia.org/wiki/Windows_10_editions

    At the time of launch, Microsoft deemed Windows 7 (with Service Pack 1) and Windows 8.1 users eligible to upgrade to Windows 10 free of charge, so long as the upgrade took place within one year of Windows 10's initial release date. Windows RT and the respective Enterprise editions of Windows 7, 8, and 8.1 were excluded from this offer.

  3. Equivalent annual cost - Wikipedia

    en.wikipedia.org/wiki/Equivalent_annual_cost

    [10] Calculating how much should be invested in an asset in order to achieve a desired result (i.e., purchasing a storage tank with a 20-year life, as opposed to one with a 5-year life, in order to achieve a similar EAC). [11] Comparing to estimated annual cost savings, in order to determine whether it makes economic sense to invest. [12]

  4. Spreadsheet - Wikipedia

    en.wikipedia.org/wiki/Spreadsheet

    Formulas in the B column multiply values from the A column using relative references, and the formula in B4 uses the SUM() function to find the sum of values in the B1:B3 range. A formula identifies the calculation needed to place the result in the cell it is contained within. A cell containing a formula, therefore, has two display components ...

  5. Baker percentage - Wikipedia

    en.wikipedia.org/wiki/Baker_percentage

    The total or sum of the baker's percentages is called the formula percentage. The sum of the ingredient masses is called the formula mass (or formula "weight"). Here are some interesting calculations: The flour's mass times the formula percentage equals the formula mass: [11]

  6. Confidence interval - Wikipedia

    en.wikipedia.org/wiki/Confidence_interval

    Methods for calculating confidence intervals for the binomial proportion appeared from the 1920s. [6] [7] The main ideas of confidence intervals in general were developed in the early 1930s, [8] [9] [10] and the first thorough and general account was given by Jerzy Neyman in 1937.

  7. Mortgage calculator - Wikipedia

    en.wikipedia.org/wiki/Mortgage_calculator

    When purchasing a new home, most buyers choose to finance a portion of the purchase price via the use of a mortgage. Prior to the wide availability of mortgage calculators, those wishing to understand the financial implications of changes to the five main variables in a mortgage transaction were forced to use compound interest rate tables.

  8. Acetic acid - Wikipedia

    en.wikipedia.org/wiki/Acetic_acid

    Acetic acid can never be truly water-free in an atmosphere that contains water, so the presence of 0.1% water in glacial acetic acid lowers its melting point by 0.2 °C. [ 9 ] A common symbol for acetic acid is AcOH (or HOAc), where Ac is the pseudoelement symbol representing the acetyl group CH 3 −C(=O)− ; the conjugate base , acetate ( CH ...

  9. Vasicek model - Wikipedia

    en.wikipedia.org/wiki/Vasicek_model

    Vasicek's model was the first one to capture mean reversion, an essential characteristic of the interest rate that sets it apart from other financial prices.Thus, as opposed to stock prices for instance, interest rates cannot rise indefinitely.