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  2. Gilbert Strang - Wikipedia

    en.wikipedia.org/wiki/Gilbert_Strang

    William Gilbert Strang (born November 27, 1934 [1]) is an American mathematician known for his contributions to finite element theory, the calculus of variations, wavelet analysis and linear algebra. He has made many contributions to mathematics education, including publishing mathematics textbooks.

  3. Rank–nullity theorem - Wikipedia

    en.wikipedia.org/wiki/Rank–nullity_theorem

    The rank–nullity theorem is a theorem in linear algebra, which asserts: the number of columns of a matrix M is the sum of the rank of M and the nullity of M ; and the dimension of the domain of a linear transformation f is the sum of the rank of f (the dimension of the image of f ) and the nullity of f (the dimension of the kernel of f ).

  4. Hadamard matrix - Wikipedia

    en.wikipedia.org/wiki/Hadamard_matrix

    Gilbert Strang demonstrates the Hadamard conjecture at MIT in 2005, using Sylvester's construction. In mathematics , a Hadamard matrix , named after the French mathematician Jacques Hadamard , is a square matrix whose entries are either +1 or −1 and whose rows are mutually orthogonal .

  5. Linear algebra - Wikipedia

    en.wikipedia.org/wiki/Linear_algebra

    15.2 Online books. Toggle the table of contents. ... Linear algebra is the branch of mathematics concerning linear equations such as: ... Strang, Gilbert (2016), ...

  6. Finite element method - Wikipedia

    en.wikipedia.org/wiki/Finite_element_method

    A rigorous mathematical basis for FEM was provided in 1973 with a publication by Gilbert Strang and George Fix. [12] The method has since been generalized for the numerical modeling of physical systems in a wide variety of engineering disciplines, such as electromagnetism , heat transfer , and fluid dynamics .

  7. Which foods are considered 'healthy?' FDA issues new label ...

    www.aol.com/news/foods-considered-healthy-fda...

    The Food and Drug Administration's new rules on "healthy" food labels are voluntary and are scheduled to take effect at the end of February.

  8. Transgender volleyball controversy: Judge rules San Jose ...

    www.aol.com/sports/transgender-volleyball...

    A federal judge denied emergency injunctive relief despite complaints from competitors who object to the Spartans player's participation on the grounds that she is transgender.

  9. Steinitz exchange lemma - Wikipedia

    en.wikipedia.org/wiki/Steinitz_exchange_lemma

    The Steinitz exchange lemma is a basic theorem in linear algebra used, for example, to show that any two bases for a finite-dimensional vector space have the same number of elements. The result is named after the German mathematician Ernst Steinitz .

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