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  2. Khan Academy - Wikipedia

    en.wikipedia.org/wiki/Khan_Academy

    Khan Academy is an American non-profit [3] educational organization created in 2006 by Sal Khan. [1] Its goal is to create a set of online tools that help educate students. [4] The organization produces short video lessons. [5] Its website also includes supplementary practice exercises and materials for educators.

  3. Walden University - Wikipedia

    en.wikipedia.org/wiki/Walden_University

    Walden University is a private for-profit online university headquartered in Minneapolis, Minnesota. It offers bachelor's, master's, doctoral, and specialist degrees. The university is owned by Adtalem Global Education, which purchased the university in August 2021. The institution is accredited by the Higher Learning Commission .

  4. Google Docs - Wikipedia

    en.wikipedia.org/wiki/Google_Docs

    Google Docs is an online word processor included as part of the free, web-based Google Docs Editors suite offered by Google, which also includes Google Sheets, Google Slides, Google Drawings, Google Forms, Google Sites and Google Keep. Google Docs is accessible via an internet browser as a web-based application and is also available as a mobile ...

  5. Wikipedia - Wikipedia

    en.wikipedia.org/wiki/Wikipedia

    Wikipedia [note 3] is a free content online encyclopedia written and maintained by a community of volunteers, known as Wikipedians, through open collaboration and the use of the wiki -based editing system MediaWiki. Wikipedia is the largest and most-read reference work in history.

  6. Twitter - Wikipedia

    en.wikipedia.org/wiki/Twitter

    The X logo uses a blackboard bold X, a character that has appeared in mathematical textbooks since the 1970s and that is included in Unicode as U+1D54F 핏 MATHEMATICAL DOUBLE-STRUCK CAPITAL X; A few days after the rebrand took effect, an AP Stylebook update recommended that journalists refer to the platform as "X, formerly known as Twitter". [6]

  7. Product and manufacturing information - Wikipedia

    en.wikipedia.org/wiki/Product_and_manufacturing...

    Product and manufacturing information, also abbreviated PMI, conveys non-geometric attributes in 3D computer-aided design (CAD) and Collaborative Product Development systems necessary for manufacturing product components and assemblies. PMI may include geometric dimensions and tolerances, 3D annotation (text) and dimensions, surface finish, and ...

  8. Pointwise mutual information - Wikipedia

    en.wikipedia.org/wiki/Pointwise_mutual_information

    Pointwise mutual information. In statistics, probability theory and information theory, pointwise mutual information ( PMI ), [1] or point mutual information, is a measure of association. It compares the probability of two events occurring together to what this probability would be if the events were independent. [2]

  9. Albert Einstein - Wikipedia

    en.wikipedia.org/wiki/Albert_Einstein

    Albert Einstein ( / ˈaɪnstaɪn / EYEN-styne; [4] German: [ˈalbɛɐt ˈʔaɪnʃtaɪn] ⓘ; 14 March 1879 – 18 April 1955) was a German-born theoretical physicist who is widely held to be one of the greatest and most influential scientists of all time. Best known for developing the theory of relativity, Einstein also made important ...