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  2. List of unsolved problems in mathematics - Wikipedia

    en.wikipedia.org/wiki/List_of_unsolved_problems...

    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.

  3. 24 (puzzle) - Wikipedia

    en.wikipedia.org/wiki/24_(puzzle)

    The original version of 24 is played with an ordinary deck of playing cards with all the face cards removed. The aces are taken to have the value 1 and the basic game proceeds by having 4 cards dealt and the first player that can achieve the number 24 exactly using only allowed operations (addition, subtraction, multiplication, division, and parentheses) wins the hand.

  4. List of Canadian primary and secondary examinations

    en.wikipedia.org/wiki/List_of_Canadian_primary...

    Elementary Mathematics Assessments (EMA) — taken in grade 6. [17] Intermediate Mathematics Assessments (IMA) — taken in grade 9. Exam mark is worth 10% of final course grade. [17] Secondary Mathematics Assessments (SMA) — taken in grade 11. Exam mark is worth 25% for Math 521A, Math 521B and Math 521M. Worth 20% for Math 512K. [17]

  5. Twelfth grade - Wikipedia

    en.wikipedia.org/wiki/Twelfth_grade

    A 12th grade visual arts class in Scott County, Virginia in the United States. Twelfth Grade (also known as 12th Grade, Grade 12, Senior Year, Standard 12, 12th Standard, 12th Class, or Grade of the 12th) is the twelfth and final year of formal or compulsory education. It is typically the final year of secondary school and K–12 in most parts ...

  6. Mathematics - Wikipedia

    en.wikipedia.org/wiki/Mathematics

    However, in practice, mathematicians are typically grouped with scientists, and mathematics shares much in common with the physical sciences. Like them, it is falsifiable , which means in mathematics that, if a result or a theory is wrong, this can be proved by providing a counterexample .

  7. Nonlinear system - Wikipedia

    en.wikipedia.org/wiki/Nonlinear_system

    In mathematics and science, a nonlinear system (or a non-linear system) is a system in which the change of the output is not proportional to the change of the input. [1] [2] Nonlinear problems are of interest to engineers, biologists, [3] [4] [5] physicists, [6] [7] mathematicians, and many other scientists since most systems are inherently nonlinear in nature. [8]

  8. Packing problems - Wikipedia

    en.wikipedia.org/wiki/Packing_problems

    Packing squares in a square: Optimal solutions have been proven for n from 1-10, 14-16, 22-25, 33-36, 62-64, 79-81, 98-100, and any square integer. The wasted space is asymptotically O(a 3/5). Packing squares in a circle: Good solutions are known for n ≤ 35. The optimal packing of 10 squares in a square

  9. 2024–25 Big 12 Conference men's basketball season - Wikipedia

    en.wikipedia.org/wiki/2024–25_Big_12_Conference...

    The Jayhawks' regular-season Big 12 championship and their Big 12 tournament championship were vacated. The Jayhawks' entire NCAA tournament appearance from the season was vacated including their Final Four appearance. ‡ Craig Smith was fired on February 24, 2025 after 27 games into the 2024−25 season.