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  2. Lotus 1-2-3 - Wikipedia

    en.wikipedia.org/wiki/Lotus_1-2-3

    During the early 1990s, Windows grew in popularity, and along with it, Excel, which gradually displaced Lotus from its leading position. A planned total revamp of 1-2-3 for Windows fell apart, and all that the company could manage was a Windows adaptation of their existing spreadsheet with no changes except using a graphical interface.

  3. Numeric precision in Microsoft Excel - Wikipedia

    en.wikipedia.org/wiki/Numeric_precision_in...

    Excel's storage of numbers in binary format also affects its accuracy. [3] To illustrate, the lower figure tabulates the simple addition 1 + x − 1 for several values of x. All the values of x begin at the 15 th decimal, so Excel must take them into account. Before calculating the sum 1 + x, Excel first approximates x as a binary number

  4. Microsoft Excel - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Excel

    Excel 2.0 for Windows, which was modeled after its Mac GUI-based counterpart, indirectly expanded the installed base of the then-nascent Windows environment. Excel 2.0 was released a month before Windows 2.0, and the installed base of Windows was so low at that point in 1987 that Microsoft had to bundle a runtime version of Windows 1.0 with ...

  5. Perspective distortion - Wikipedia

    en.wikipedia.org/wiki/Perspective_distortion

    In photography and cinematography, perspective distortion is a warping or transformation of an object and its surrounding area that differs significantly from what the object would look like with a normal focal length, due to the relative scale of nearby and distant features.

  6. CW complex - Wikipedia

    en.wikipedia.org/wiki/CW_complex

    It admits a CW structure with one cell in each dimension. The terminology for a generic 2-dimensional CW complex is a shadow. [8] A polyhedron is naturally a CW complex. Grassmannian manifolds admit a CW structure called Schubert cells. Differentiable manifolds, algebraic and projective varieties have the homotopy type of CW complexes.

  7. Wood warping - Wikipedia

    en.wikipedia.org/wiki/Wood_warping

    The types of wood warping include: bow: a warp along the length of the face of the wood; crook: a warp along the length of the edge of the wood; kink: a localized crook, often due to a knot; cup: a warp across the width of the face, in which the edges are higher or lower than the center of the wood

  8. Hann function - Wikipedia

    en.wikipedia.org/wiki/Hann_function

    The function is named in honor of von Hann, who used the three-term weighted average smoothing technique on meteorological data. [6] [2] However, the term Hanning function is also conventionally used, [7] derived from the paper in which the term hanning a signal was used to mean applying the Hann window to it.

  9. Microsoft Office 95 - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Office_95

    Microsoft Office 95 (version 7.0) [a] is the fourth major release of the Microsoft Office office suite for Windows systems, released by Microsoft on August 24, 1995. [5] It is the successor to both Office 4.2 and 4.3 and it bumps up the version number of both the suite itself and all its components to 7.0, so that each Office program's number matches the rest.