Matrices
From Robotics
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This article deals with some fundamental matrix features and the basic arithmetic operations.
Matrices can have arbitrary dimensions. A matrix with m rows and n colums is denoted as an mxn matrix. In the context of robotics mainly 3x3 or 4x4 matrices are used. An example of a 3x3 matrix is:
Individual colums and rows are often denoted as column vectors and row vectors. For the example matrix the column vectors are
and the row vectors are
In the following subarticles some basic arithmetic operations for matrices are described.