A superscript T denotes the matrix transpose operation; for example, AT denotes the transpose of A. Similarly, if A has an inverse it will be denoted by A-1. The determinant of A will be denoted by either jAj or det(A). Similarly, the rank of a matrix A is denoted by rank(A). An identity matrix will be denoted by I, and 0 will denote a null matrix.
In the 1970s, Bruce D. Henderson, founder of the Boston Consulting Group, came up with The Product Portfolio (aka BCG Matrix, or Growth-share Matrix), which would look at a successful business product portfolio based on potential growth and market shares. It divided products into four main categories: cash cows, pets (dogs), question marks, and stars.
A covariance matrix is a square matrix that shows the covariance between many different variables. This can be a useful way to understand how different variables are related in a dataset. The following example shows how to create a covariance matrix in Google Sheets for a given dataset. How to Create a Covariance Matrix in Google Sheets
An important rationale for sparse estimation comes from the observation that in many practical applications the size of the matrix Θ is much larger than the number of data points n, but the underlying inverse covariance matrix which we wish to estimate is known to be sparse.
Hello!!! Thanks for checking out my math videos! I also have 1,000+ more math videos over at my Math YouTube Channel.. Here’s a link to some Bell Ringers (Problems of the Day) to play when the bell rings for students to work on while you take attendance or just more practice if you’re a student visiting.
Inverse of a 2 x 2 matrix 13. Inverse of a 3 x 3 matrix 14. Identify inverse matrices 15. Solve matrix equations using inverses 16. Identify transformation matrices ...
Check Sheet Example. Create a Check Sheet. Start using the check sheet template to track up to 10 defects on each day of the week. This tool also creates a histogram, bar chart, and Pareto chart using the check-sheet data. Excerpted from The Quality Toolbox, Second Edition, ASQ Quality Press.
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