Relational Operators (MATRIX-END MATRIX command)
The relational operators are used to compare two matrices, element by element. The result is a matrix of the same size as the (expanded) operands and containing either 1 or 0. The value of each element, 1 or 0, is determined by whether the comparison between the corresponding element of the first matrix with the corresponding element of the second matrix is true or false--1 for true and 0 for false. The matrices being compared must be of the same dimensions unless one of them is a scalar. The relational operators are listed in the following table.
| Symbol | Keyword | Definition |
|---|---|---|
| > | GT | Greater than |
| < | LT | Less than |
| <> or ~= (¬=) | NE | Not equal to |
| <= | LE | Less than or equal to |
| >= | GE | Greater than or equal to |
| = | EQ | Equal to |
- The symbolic and alphabetic forms of these operators are equivalent.
- The symbols representing NE (~= or ¬=) are system dependent. In general, the tilde (~) is valid for ASCII systems, while the logical-not sign (¬), or whatever symbol is over the number 6 on the keyboard, is valid for IBM EBCDIC systems.
- Use these operators only with numeric matrices. The results are undefined when they are used with string matrices.