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  2. Comparison of spreadsheet software - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_spreadsheet...

    The operating systems the software can run on natively (without emulation).Android and iOS apps can be optimized for Chromebooks and iPads which run the operating systems ChromeOS and iPadOS respectively, the operating optimizations include things like multitasking capabilities, large and multi-display support, better keyboard and mouse support.

  3. Convex function - Wikipedia

    en.wikipedia.org/wiki/Convex_function

    The term convex is often referred to as convex down or concave upward, and the term concave is often referred as concave down or convex upward. [3] [4] [5] If the term "convex" is used without an "up" or "down" keyword, then it refers strictly to a cup shaped graph .

  4. Down payment - Wikipedia

    en.wikipedia.org/wiki/Down_payment

    State or local housing authorities, a non-profit organization, or lender usually set the requirements and conditions for the DPA program. Some programs require you or your loan officer to take a short course on Down Payment Assistance for first time home buyers. [2] Homebuyer assistance programs vary by state and can amount to up to three ...

  5. Concave function - Wikipedia

    en.wikipedia.org/wiki/Concave_function

    The sum of two concave functions is itself concave and so is the pointwise minimum of two concave functions, i.e. the set of concave functions on a given domain form a semifield. Near a strict local maximum in the interior of the domain of a function, the function must be concave; as a partial converse, if the derivative of a strictly concave ...

  6. PrimoPDF - Wikipedia

    en.wikipedia.org/wiki/PrimoPDF

    It uses the Ghostscript file format converter and RedMon printer redirection software. [5] According to its documentation, PrimoPDF has the following features: PrimoPDF supports creation profiles (Screen, eBook, Print, Prepress, and Custom) to determine file quality, resolution, and size. Can append output to an existing PDF file.

  7. Logarithmically concave function - Wikipedia

    en.wikipedia.org/wiki/Logarithmically_concave...

    The following are among the properties of log-concave distributions: If a density is log-concave, so is its cumulative distribution function (CDF). If a multivariate density is log-concave, so is the marginal density over any subset of variables. The sum of two independent log-concave random variables is log-concave. This follows from the fact ...

  8. Trapezoidal rule - Wikipedia

    en.wikipedia.org/wiki/Trapezoidal_rule

    This can also be seen from the geometric picture: the trapezoids include all of the area under the curve and extend over it. Similarly, a concave-down function yields an underestimate because area is unaccounted for under the curve, but none is counted above. If the interval of the integral being approximated includes an inflection point, the ...

  9. Comparison of open-source and closed-source software

    en.wikipedia.org/wiki/Comparison_of_open-source...

    A non-free license is used to limit what free software movement advocates consider to be the essential freedoms. A license, whether providing open-source code or not, that does not stipulate the "four software freedoms", [3] are not considered "free" by the free software movement. A closed source license is one that limits only the availability ...