Download REDUCE User`s Manual - REDUCE Computer Algebra System

Chapter 13
Matrix Calculations
A very powerful feature of REDUCE is the ease with which matrix calculations
can be performed. To extend our syntax to this class of calculations we need to
add another prefix operator, MAT, and a further variable and expression type as
follows:
13.1
MAT Operator
This prefix operator is used to represent n × m matrices. MAT has n arguments interpreted as rows of the matrix, each of which is a list of m expressions representing
elements in that row. For example, the matrix
a b c
d e f
!
would be written as mat((a,b,c),(d,e,f)).
Note that the single column matrix
x
y
!
becomes mat((x),(y)). The inside parentheses are required to distinguish it
from the single row matrix
x y
that would be written as mat((x,y)).
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