MAT IDN

General Forms:

1.      MAT numeric_receiver_array = IDN [(dim1 [,dim2])]

2.      numeric_receiver_array = IDN [(dim1 [,dim2])]

The MAT identity statement sets the diagonal elements of the numeric receiver array to one and the non-diagonal elements to zero. An error will result if the receiver array is not a square matrix. The array may be explicity redimensioned by specifying the new dimensions, within parentheses, after the IDN keyword, e.g.

MAT B = IDN(15,15)

Example:

DIM matrix(3,3)
MAT matrix = IDN
PRINT matrix()

1      0      0
0      1      0
0      0      1

Syntax examples:

MAT fred = IDN
fred() = IDN
MAT alpha = IDN(9,9)
beta()=IDN(first,second)