Curated Video
Data Science Prerequisites - Numpy, Matplotlib, and Pandas in Python - Matrices
In this video, you will learn about matrices. This clip is from the chapter "NumPy" of the series "Data Science Prerequisites - NumPy, Matplotlib, and Pandas in Python".In this section of the course, we will dive into the world of NumPy,...
APMonitor
Solve Linear Equations with Excel
Excel MMULT and MINVERSE functions are used to solve systems of linear equations such as A * x = b by inverting A and multiplying by the right hand side (x = A^-1 * b).
Khan Academy
Khan Academy: Linear Algebra: Showing That a Transpose X a Is Invertible
A video lesson proving that the product of a matrix and its transpose is invertible if all of the columns of the originial matrix are linearly independent. [12:34]