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  1. Intro to matrices (article) - Khan Academy

    Matrix is an arrangement of numbers into rows and columns. Make your first introduction with matrices and learn about their dimensions and elements. A matrix is a rectangular …

  2. Matrices | Precalculus | Math | Khan Academy

    Intro to determinant notation and computation Interpreting determinants in terms of area Finding area of figure after transformation using determinant Proof: Matrix determinant gives area of …

  3. Intro to matrices (video) - Khan Academy

    What I want to do in this video is explore the notion of a matrix outside of the context of a surprisingly good movie that involves Keanu Reeves. And it's actually the first of three.

  4. Matrices | Algebra (all content) | Math | Khan Academy

    This topic covers: - Adding & subtracting matrices - Multiplying matrices by scalars - Multiplying matrices - Representing & solving linear systems with matrices - Matrix inverses - Matrix …

  5. Identity matrix: intro to identity matrices (article) - Khan Academy

    In your 3rd paragraph, you show a right identity matrix such that AI=A and a left identity matrix (IA=A). The right and left identity matrices are equal only if A is square matrix.

  6. Intro to zero matrices (article) | Matrices | Khan Academy

    Learn what a zero matrix is and how it relates to matrix addition, subtraction, and scalar multiplication.

  7. Vectors and spaces | Linear algebra | Math | Khan Academy

    Vectors are an important concept, not just in math, but in physics, engineering, and computer graphics, so you're likely to see them again in other subjects.

  8. Matrix vector products (video) | Khan Academy

    This definition follows from the fact that the matrix is a set of vectors which transform a vector into another vector. It can be shown that every linear transformation from x, a vector in R^n to y, a …

  9. Matrices, intro (article) | Khan Academy

    A matrix is an array of numbers that we surround with square brackets. The dimension of a matrix is how many rows and columns it has, which we write as rows × columns .

  10. Khan Academy

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