
Intro to matrices (video) | Matrices | 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.
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.
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 determinants - …
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 .
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 image of unit …
Identity matrix: intro to identity matrices (article) | Khan Academy
The dimensions of a matrix tell the number of rows and columns of the matrix in that order. Since matrix A has 2 rows and 3 columns, it is called a 2 × 3 matrix.
The extracellular matrix and cell wall (article) | Khan Academy
Most animal cells release materials into the extracellular space, creating a complex meshwork of proteins and carbohydrates called the extracellular matrix (ECM).
Multiplying matrices (article) - Khan Academy
When we multiply a matrix by a scalar (i.e., a single number) we simply multiply all the matrix's terms by that scalar. We can also multiply a matrix by another matrix, but this process is more complicated. …
Matrices | NCERT Math Class 12 | Khan Academy
Matrix This lesson covers skills from the following lessons of the NCERT Math Textbook: (i) 3.1- Introduction, and (ii) 3.2 - Matrix
Transpose of a matrix (video) | Khan Academy
Transposing a matrix — switching its rows with columns — is a fundamental operation with wide applications in mathematics, computer science, and engineering.