APPENDIX A
MATRIX ALGEBRA FOR STRUCTURAL ANALYSIS
A.1 BASIC DEFINITIONS AND TYPES OF MATRICES
With the accessibility of desktop computers, the use of matrix algebra for the analysis of structures has become widespread. Matrix algebra provides an appropriate tool for this analysis, since it is relatively easy to formulate the solution in a concise form and then perform the actual manipulations using a computer. It is for this reason that the structural engineer must be somewhat familiar with the fundamental operations of this branch of mathematics.
Matrix. A matrix is a rectangular arrangement of numbers having m rows and n columns. The numbers, which are called elements, are assembled within brackets. For example, the A matrix is written as: ...
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