Using the C++ Math Library

Using Logical Subscripts

This section describes how to use:

• A logical index as a one-dimensional subscript
• Two logical vectors as indices in a two-dimensional subscript
• A colon index and a logical vector as a two-dimensional subscript
• A logical index to select elements from a row or column

The examples work with matrix A and the logical array B.

A
1 4 7
2 5 8
3 6 9
B 
1 0 1
0 1 0
1 0 1

Extending Two-Dimensional Indexing to N Dimensions

Overview