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  2. Formula editor - Wikipedia

    en.wikipedia.org/wiki/Formula_editor

    Formula Sheet Equation Editor [permanent dead link ‍] Yes Yes No Yes Yes Yes No No Online LaTeX equation editor with real-time .png, .pdf, and .tex output. Customizable resolution, font, and color. One click copy to MS Word 2007+ using MathML. Formulator MathML Weaver: Yes Yes No No Yes Yes No No Dual-licensing (Open source and commercial).

  3. Archimedes number - Wikipedia

    en.wikipedia.org/wiki/Archimedes_number

    The Archimedes number is applied often in the engineering of packed beds, which are very common in the chemical processing industry. [3] A packed bed reactor, which is similar to the ideal plug flow reactor model, involves packing a tubular reactor with a solid catalyst, then passing incompressible or compressible fluids through the solid bed. [3]

  4. Drug accumulation ratio - Wikipedia

    en.wikipedia.org/wiki/Drug_accumulation_ratio

    The accumulation ratio of a specific drug in humans is determined by clinical studies. According to a 2013 analysis, such studies are typically done with 10 to 20 subjects who are given one single dose followed by a washout phase of seven days , and then seven to 14 repeated doses to reach steady state conditions. Blood samples are drawn 11 ...

  5. Ratio estimator - Wikipedia

    en.wikipedia.org/wiki/Ratio_estimator

    The ratio estimator is a statistical estimator for the ratio of means of two random variables. Ratio estimates are biased and corrections must be made when they are used in experimental or survey work. The ratio estimates are asymmetrical and symmetrical tests such as the t test should not be used to generate confidence intervals.

  6. Autoregressive moving-average model - Wikipedia

    en.wikipedia.org/wiki/Autoregressive_moving...

    For example, processes in the AR(1) model with | | are not stationary because the root of = lies within the unit circle. [3] The augmented Dickey–Fuller test assesses the stability of IMF and trend components. For stationary time series, the ARMA model is used, while for non-stationary series, LSTM models are used to derive abstract features.

  7. Archard equation - Wikipedia

    en.wikipedia.org/wiki/Archard_equation

    The Archard wear equation is a simple model used to describe sliding wear and is based on the theory of asperity contact. The Archard equation was developed much later than Reye's hypothesis [] (sometimes also known as energy dissipative hypothesis), though both came to the same physical conclusions, that the volume of the removed debris due to wear is proportional to the work done by friction ...

  8. Day count convention - Wikipedia

    en.wikipedia.org/wiki/Day_count_convention

    The day count is also used to quantify periods of time when discounting a cash-flow to its present value. When a security such as a bond is sold between interest payment dates, the seller is eligible to some fraction of the coupon amount. The day count convention is used in many other formulas in financial mathematics as well.

  9. Cumulative accuracy profile - Wikipedia

    en.wikipedia.org/wiki/Cumulative_accuracy_profile

    The accuracy ratio (AR) is defined as the ratio of the area between the model CAP and random CAP, and the area between the perfect CAP and random CAP. [2] In a successful model, the AR has values between zero and one, and the higher the value is, the stronger the model. The cumulative number of positive outcomes indicates a model's strength.