About functions | • Functions can be used in any aplet or in HOME. They |
| are listed in the MATH menu under the Matrix |
| category. They can be used in mathematical |
| |
| programs. |
| • 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 |
| matrix commands available for use in programming. |
| Functions differ from commands in that a function can be |
| used in an expression. Commands cannot be used in an |
| expression. |
•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) |
Matrices |