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  2. Dot product - Wikipedia

    en.wikipedia.org/wiki/Dot_product

    Dot product. In mathematics, the dot product or scalar product [note 1] is an algebraic operation that takes two equal-length sequences of numbers (usually coordinate vectors ), and returns a single number. In Euclidean geometry, the dot product of the Cartesian coordinates of two vectors is widely used. It is often called the inner product (or ...

  3. Meaning Latin (or Neo-Latin) origin a.c. before meals: ante cibum a.d., ad, AD right ear auris dextra a.m., am, AM morning: ante meridiem: nocte every night Omne Nocte

  4. Engineering drawing abbreviations and symbols - Wikipedia

    en.wikipedia.org/wiki/Engineering_drawing...

    Engineering drawing abbreviations and symbols are used to communicate and detail the characteristics of an engineering drawing. This list includes abbreviations common to the vocabulary of people who work with engineering drawings in the manufacture and inspection of parts and assemblies. Technical standards exist to provide glossaries of ...

  5. Double penetration - Wikipedia

    en.wikipedia.org/wiki/Double_penetration

    Double penetration. Double penetration (sometimes called DP for short) is a term that usually refers to a vaginal and anal sex act involving one penis penetrating a vagina while another penetrates the anus. It could also refer to the simultaneous penetration of either a vagina or an anus by two penises or objects. [1]

  6. DPT vaccine - Wikipedia

    en.wikipedia.org/wiki/DPT_vaccine

    The DPT vaccine or DTP vaccine is a class of combination vaccines against three infectious diseases in humans: diphtheria, pertussis (whooping cough), and tetanus (lockjaw). [7] The vaccine components include diphtheria and tetanus toxoids, and either killed whole cells of the bacterium that causes pertussis or pertussis antigens.

  7. Party and play - Wikipedia

    en.wikipedia.org/wiki/Party_and_play

    Methamphetamine is the drug most associated with party and play. Party and play ( PnP ), also known as chemsex or wired play, refers to the practice of consuming drugs to enhance sexual activity. This sexual subculture involves recreational drug users engaging in high-risk sexual behaviors under the influence of drugs, often within specific sub ...

  8. List of email subject abbreviations - Wikipedia

    en.wikipedia.org/wiki/List_of_email_subject...

    WFH – work from home. Used in the subject line or body of the email. 1L – One Liner. Used at the beginning of the subject when the subject of the email is the only text contained in the email. This prefix indicates to the reader that it is not necessary to open the email. E.g., "1L: WFH today".

  9. Notation for differentiation - Wikipedia

    en.wikipedia.org/wiki/Notation_for_differentiation

    A function f of x, differentiated once in Lagrange's notation. One of the most common modern notations for differentiation is named after Joseph Louis Lagrange, even though it was actually invented by Euler and just popularized by the former. In Lagrange's notation, a prime mark denotes a derivative.