Appendix B

Directions For Computer Algebra Sys-temsB.1 Finding Inverses

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B.2 Finding Row Reduced Echelon Form▶▶

B.3 Finding PLU Factorizations▶ ▶

B.4 Finding QR Factorizations▶ ▶

B.5 Finding Singular Value DecompositionFirst here is how you do it using Scientific Notebook. It does it very easily.

▶Next, here is the rather elaborate procedure to get the singular value decomposition

using maple. I am using maple 12. Maybe there is an easier way with a more up to dateversion. I am not sure.

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B.6 Use Of Matrix Calculator On WebThere is a really nice service on the web which will do all of these things very easily. It iswww.bluebit.gr/matrix-calculator/ or click on following link or google matrix calculator.

▶You enter a matrix row by row, placing a space between each number. When you come

to the end of a row, you press enter on the keyboard to enter the next row. When you haveentered the matrix, you select what you want it to do.

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