Table 7-2: MAT Statement Keywords
MAT Keyword Function
ZER Sets the value of all elements in a numeric array to zero.
CON Sets the value of all elements in a numeric array to 1, except those in row and
column zero.
IDN Sets the array to the identity matrix, that is, it sets the value of all elements in real
or integer arrays to zero, except for those elements on the diagonal from element
(1,1) to element (n,n), where n is the largest subscript in the array. The elements on
the diagonal are set to 1. IDN applies to square arrays only.
NUL$ Sets the value of all elements in a string array to the null string, except those in row
and column zero.