Language Reference

BTRAN Function

computes the block transpose

BTRAN( , , )

The inputs to the BTRAN function are as follows:

is an numeric matrix.

is a scalar with a value that specifies the row dimension of the submatrix blocks.

is a scalar with a value that specifies the column dimension of the submatrix blocks.

The BTRAN function computes the block transpose of a partitioned matrix. The argument is a partitioned matrix formed from submatrices of dimension . If the th, th submatrix of the argument is denoted , then the th, th submatrix of the result is .

The value returned by the BTRAN function is a matrix, the block transpose of , where the blocks are .

For example, the following statements produce the matrix , as shown:

  
    z=btran({1 2 3 4, 
             5 6 7 8},2,2); 
    print z;
 

  
              Z             4 rows      2 cols    (numeric) 
  
  
                                   1         2 
                                   5         6 
                                   3         4 
                                   7         8