TABLE OF CONTENTS Matrix calculations can be classified into several types. The first type represents the simplest actions implemented by operators ( see Section 9.1) and several functions intended for creating, joining, and sorting matrices, and obtaining their basic properties ( see Section 9.2). The second type comprises more complicated functions implementing numerical algorithms of linear algebra, such as solving systems of linear equations ( see Section 9.3), calculating eigenvalues and eigenvectors ( see Section 9.4), and various matrix decompositions ( see Section 9.5).
Mathcad implements the simplest operations of matrix algebra as operators. The syntax of the operators is very close to the mathematical principle of their respective operations. Each operator is designated by an appropriate symbol. In this section, we will consider matrix and vector operations available in Mathcad 2001i. A vector is a particular case in which the matrix contains one column (i.e., one with the dimension of N 1). Thus, all operations that are valid for matrices are also applicable for vectors, except when restrictions are specially mentioned (for example, some operations are only applicable to square matrices like N N). Some operations are valid for vectors only (such as a vector inner product, also known as a "dot product"), while other operations have a different effect on vectors and matrices, despite the fact that they are written identically.
| Note | Vector operations aren't directly applicable to strings ( 1 N matrices). Before applying such an operation, you need... |
