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  2. Photomath - Wikipedia

    en.wikipedia.org/wiki/Photomath

    Photomath utilizes the camera of a user's smartphone or tablet to scan and identify mathematical problems. [4] Upon recognition, the app displays the steps to solve the problem. The app presents these steps through various methods and approaches, elucidating the problem-solving process in a step-by-step manner to educate users.

  3. Word problem (mathematics education) - Wikipedia

    en.wikipedia.org/wiki/Word_problem_(mathematics...

    Word problem from the Līlāvatī (12th century), with its English translation and solution. In science education, a word problem is a mathematical exercise (such as in a textbook, worksheet, or exam) where significant background information on the problem is presented in ordinary language rather than in mathematical notation.

  4. Word problem (mathematics) - Wikipedia

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

    The word problem for an algebra is then to determine, given two expressions (words) involving the generators and operations, whether they represent the same element of the algebra modulo the identities. The word problems for groups and semigroups can be phrased as word problems for algebras. [1]

  5. Nonogram - Wikipedia

    en.wikipedia.org/wiki/Nonogram

    Solving nonogram puzzles is an NP-complete problem. [ 5 ] [ 6 ] [ 7 ] This means that there is no polynomial time algorithm that solves all nonogram puzzles unless P = NP . However, certain classes of puzzles, such as those in which each row or column has only one block of cells and all cells are connected, may be solved in polynomial time by ...

  6. Singapore math - Wikipedia

    en.wikipedia.org/wiki/Singapore_math

    They would then solve the problem by inferring the shorter part to be 30. The bar model can be drawn as a comparison model to compare two bars of unequal lengths, which can then be used to solve a subtraction problem. The whole-part model can also be used to solve problems involving multiplication or division. [26]

  7. Word problem for groups - Wikipedia

    en.wikipedia.org/wiki/Word_problem_for_groups

    On the other hand, the fact that a particular algorithm does not solve the word problem for a particular group does not show that the group has an unsolvable word problem. For instance Dehn's algorithm does not solve the word problem for the fundamental group of the torus. However this group is the direct product of two infinite cyclic groups ...

  8. The best digital photo frames of 2025 - AOL

    www.aol.com/lifestyle/best-digital-photo-frames...

    Size: The average photo frame measures about 10 inches diagonally, roughly the same as an entry-level iPad. I'd consider that the minimum size; anything smaller will make it hard to view photos ...

  9. 15 puzzle - Wikipedia

    en.wikipedia.org/wiki/15_puzzle

    Named after the number of tiles in the frame, the 15 puzzle may also be called a "16 puzzle", alluding to its total tile capacity. Similar names are used for different sized variants of the 15 puzzle, such as the 8 puzzle, which has 8 tiles in a 3×3 frame. The n puzzle is a classical problem for modeling algorithms involving heuristics.