Instructions
- To use this tool, please enter row values separated by spaces.
- End each row by pressing the
Enter key so these are recognized as individual entries.
Who can use it?
- Researchers, teachers, students, or anyone working with matrices.
Exercises
- Show with examples that
- (AAt)t = AAt
- (ABC)t = CtBtAt
- AAt = AtA for any square matrix symmetric across its diagonal.
- Compute the term-term and document-document matrices from a term-document matrix populated with frequency values.
- Generate
- an uncorrected sums of squares and cross products
matrix (USSCP).
- a corrected sums of squares and cross products
matrix (CSSCP).
- a covariance matrix.
- a correlation matrix.
References
- Carey, G. (1998). Important Matrices for Multivariate Analysis.
- Handbook of Applied Mathematics for Engineers and Scientists; Max Kurtz, McGraw Hill (1991).
- Discrete Dynamical Systems, Theory and Applications; James T. Sandefur, Oxford University Press; Chapter 6 Absorbing Markov Chains (1990).
Feedback
Contact us for any suggestion or question regarding this tool.
