Autodesk AUTOCAD 2006 Command Reference Manual page 684

The rotation angle sets the angle of the individual block inserts and also sets
the angle of the entire array.
Enter number of rows (---) <1>: Enter a positive value
Enter number of columns (| | |) <1>: Enter a positive value
If you specify more than one row, the following prompt is displayed:
Enter distance between rows or specify unit cell (---): Enter a value, or specify two
points to define a box whose width and height represent the distance between rows
and between columns
If you specify more than one column and no unit cell, the following prompt
is displayed:
Specify distance between columns ( | | | ): Enter a value or specify a distance
Z
Sets the Z scale factor.
Specify Z scale factor: Enter a nonzero value
Specify insertion point:
Specify rotation angle <0>:
The rotation angle sets the angle of the individual block inserts and also sets
the angle of the entire array.
Enter number of rows (---) <1>: Enter a positive value
Enter number of columns (| | |) <1>: Enter a positive value
If you specify more than one row, the following prompt is displayed:
Enter distance between rows or specify unit cell (---): Enter a value, or specify two
points to define a box whose width and height represent the distance between rows
and between columns
If you specify more than one column and no unit cell, the following prompt
is displayed:
Specify distance between columns ( | | | ): Enter a value or specify a distance
Rotate
Sets the angle of insertion for both the individual blocks and the entire array.
Specify rotation angle <0>:
Specify insertion point:
Enter X scale factor, specify opposite corner, or [Corner/XYZ] <1>: Enter a value,
enter an option or press ENTER
X Scale Factor
Sets the X scale factor.
Enter Y scale factor <use X scale factor>: Enter a value or press ENTER to use
the same scale factor
660 | Chapter 14