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Many mathematical problems have been stated but not yet solved. These problems come from many areas of mathematics, such as theoretical physics, computer science, algebra, analysis, combinatorics, algebraic, differential, discrete and Euclidean geometries, graph theory, group theory, model theory, number theory, set theory, Ramsey theory, dynamical systems, and partial differential equations.
In machine learning, one-class classification (OCC), also known as unary classification or class-modelling, tries to identify objects of a specific class amongst all objects, by primarily learning from a training set containing only the objects of that class, [1] although there exist variants of one-class classifiers where counter-examples are used to further refine the classification boundary.
If there is a solution for k dollars that includes at least one 4-dollar coin, replace it by a 5-dollar coin to make k + 1 dollars. Otherwise, if only 5-dollar coins are used, k must be a multiple of 5 and so at least 15; but then we can replace three 5-dollar coins by four 4-dollar coins to make k + 1 dollars.
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StudyBlue allowed students to store their notes in the cloud and connect with other students studying the same subjects. StudyBlue content could be accessed online or on mobile phone applications. The company served students at high schools, community colleges, and universities predominantly in the United States and Canada, but also around the ...
Based on their study of students enrolled in a Mathematics course at the Ethembeni Community College in Port Elizabeth, South Africa, Koch and Snyders concluded that a lecture that is adapted to the student may have at least as good outcomes as Video Supplementary Instruction; in the study, one adaptation was longer lecture times in the ...
Grade retention or grade repetition is the process of a student repeating a grade after failing the previous year.. In the United States of America, grade retention can be used in kindergarten through to third grade; however, students in high school are usually only retained in the specific failed subject.
OneClass conducted a survey in December 2020. In April 2020, OneClass found that 75% of university students were unhappy with the quality of online learning. The survey was conducted because 85% of college students reported the pandemic had a negative impact on their academic performance. [6] [7]