Matrix functions and commands
6. Return to Home and enter the calculation to
left-multiply the constants vector by the inverse of the
The result is a vector of the solutions x = 2, y = 3 and z =
An alternative method, is to use the RREF function.
Functions can be used in any app or in Home. They
are listed in the Math menu under the Matrix
category. They can be used in mathematical
expressions—primarily in Home—as well as in
Functions always produce and display a result. They
do not change any stored variables, such as a matrix
Functions have arguments that are enclosed in
parentheses and separated by commas; for example,
CROSS(vector1,vector2 ). The matrix input can be
either a matrix variable name (such as M1) or the
actual matrix data inside brackets. For example,
Matrix commands are listed in the CMDS menu (
), in the matrix category.
See the chapter titled Programming for more information
on matrix commands.
Functions differ from commands in that a function can be
used in an expression. Commands cannot be used in an