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2. Kahoot! - Wikipedia

   en.wikipedia.org/wiki/Kahoot!

   Launched. March 2013 [ 2] Kahoot! is a Norwegian online game-based learning platform. [ 3] It has learning games, also known as "kahoots", which are user-generated multiple-choice quizzes that can be accessed via a web browser or the Kahoot! app. [ 4][ 5]

3. Differential (mathematics) - Wikipedia

   en.wikipedia.org/wiki/Differential_(mathematics)

   The term differential is used nonrigorously in calculus to refer to an infinitesimal ("infinitely small") change in some varying quantity. For example, if x is a variable, then a change in the value of x is often denoted Δ x (pronounced delta x ). The differential dx represents an infinitely small change in the variable x.

4. Cool Math Games - Wikipedia

   en.wikipedia.org/wiki/Cool_Math_Games

   Written in. PHP, HTML and Adobe Flash. Cool Math Games (branded as Coolmath Games) [ a] is an online web portal that hosts HTML and Flash web browser games targeted at children and young adults. Cool Math Games is operated by Coolmath LLC and first went online in 1997 with the slogan: "Where logic & thinking meets fun & games.".

5. Equality (mathematics) - Wikipedia

   en.wikipedia.org/wiki/Equality_(mathematics)

   Equality (mathematics) In mathematics, equality is a relationship between two quantities or, more generally, two mathematical expressions, asserting that the quantities have the same value, or that the expressions represent the same mathematical object. Equality between A and B is written A = B, and pronounced " A equals B ".

6. Difference algebra - Wikipedia

   en.wikipedia.org/wiki/Difference_algebra

   Difference algebra is a branch of mathematics concerned with the study of difference (or functional) equations from the algebraic point of view. Difference algebra is analogous to differential algebra but concerned with difference equations rather than differential equations. As an independent subject it was initiated by Joseph Ritt and his ...

7. Glossary of mathematical jargon - Wikipedia

   en.wikipedia.org/wiki/Glossary_of_mathematical...

   projection. A projection is, roughly, a map from some space or object to another that omits some information on the object or space. For example, R 2 → R , ( x , y ) ↦ x {\displaystyle \mathbb {R} ^ {2}\to \mathbb {R} , (x,y)\mapsto x} is a projection and its restriction to a graph of a function, say, is also a projection.

8. Difference quotient - Wikipedia

   en.wikipedia.org/wiki/Difference_quotient

   The difference between two points, themselves, is known as their Delta (Δ P ), as is the difference in their function result, the particular notation being determined by the direction of formation: Backward difference: ∇F (P) = F (P) − F (P − ΔP). The general preference is the forward orientation, as F (P) is the base, to which ...

9. Difference in differences - Wikipedia

   en.wikipedia.org/wiki/Difference_in_differences

   Difference in differences. Difference in differences ( DID[ 1] or DD[ 2]) is a statistical technique used in econometrics and quantitative research in the social sciences that attempts to mimic an experimental research design using observational study data, by studying the differential effect of a treatment on a 'treatment group' versus a ...