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Quizlet's primary products include digital flash cards, matching games, practice electronic assessments, and live quizzes. In 2017, 1 in 2 high school students used Quizlet. [ 4 ] As of December 2021, Quizlet has over 500 million user-generated flashcard sets and more than 60 million active users.
The arithmetic mean (or simply mean or average) of a list of numbers, is the sum of all of the numbers divided by their count. Similarly, the mean of a sample x 1 , x 2 , … , x n {\displaystyle x_{1},x_{2},\ldots ,x_{n}} , usually denoted by x ¯ {\displaystyle {\bar {x}}} , is the sum of the sampled values divided by the number of items in ...
In set theory, a Cartesian product is a mathematical operation which returns a set (or product set) from multiple sets. That is, for sets A and B, the Cartesian product A × B is the set of all ordered pairs (a, b) —where a ∈ A and b ∈ B. [5] The class of all things (of a given type) that have Cartesian products is called a Cartesian ...
Window Hook Protection - A hook is a mechanism to listen to system messages that are sent to an application window such as mouse and keyboard events. Hook protection prevents malware from listening to these messages. Kernel Level keylogging Protection Key loggers are a form of spyware or "trojans" that are used to capture keystrokes.
In mathematics, a multiple is the product of any quantity and an integer. [1] In other words, for the quantities a and b, it can be said that b is a multiple of a if b = na for some integer n, which is called the multiplier. If a is not zero, this is equivalent to saying that / is an integer.
In mathematics, an empty product, or nullary product or vacuous product, is the result of multiplying no factors. It is by convention equal to the multiplicative identity (assuming there is an identity for the multiplication operation in question), just as the empty sum—the result of adding no numbers—is by convention zero, or the additive identity.
OpenBoard is a discontinued free and open source keyboard based on AOSP for Android devices. It does not contain shortcuts to any Google apps and does not connect to Google servers. [1] OpenBoard is licensed under GNU General Public License v3.0. [2] There is a fork of OpenBoard that gained popularity, called HeliBoard. [3]
In mathematics, a product metric is a metric on the Cartesian product of finitely many metric spaces (,), …, (,) which metrizes the product topology. The most prominent product metrics are the p product metrics for a fixed p ∈ [ 1 , ∞ ) {\displaystyle p\in [1,\infty )} : It is defined as the p norm of the n -vector of the distances ...