Linear algebra deals with linear equations such as and linear transformations (or linear functions) and their representations, such as matrices and vectors.
Linear algebra identifies the following mathematical objects:
- Scalars: A single number.
- Vectors: A one-dimensional array of numbers (or components). Each component of the array has an index. In literature, we will see vectors denoted either with a superscript arrow () or in bold (x). The following is an example of a vector: