•Functions always produce and display a result. They do not change any stored variables, such as a matrix variable.
•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,
CROSS(M1,[1,2]).
About commands Matrix commands are listed in the CMDS menu (
CMDS), in the matrix category.
See “Matrix commands” on page
Functions differ from commands in that a function can be used in an expression. Commands cannot be used in an expression.
Argument conventions•For row# or column#, supply the number of the row (counting from the top, starting with 1) or the number of the column (counting from the left, starting with 1).
•The argument matrix can refer to either a vector or a matrix.
Matrix functions
COLNORM | Column Norm. Finds the maximum value (over all |
| columns) of the sums of the absolute values of all elements |
| in a column. |
| COLNORM(matrix) |
COND | Condition Number. Finds the |
| square matrix. |
| COND(matrix) |
CROSS | Cross Product of vector1 with vector2. |
| CROSS(vector1, vector2) |
Matrices |