The SAS/IML language provides two functions for solving a nonsingular nxn linear system A*x = c: The INV function numerically computes the inverse matrix, A-1. You can use this to solve for x: Ainv = inv(A); x = Ainv*c;. The SOLVE function numerically computes the particular solution, x, for a
Contributed by Debbi Scheufler and Kelley Weston MWSUG 2011 Conference Chairs ~ MWSUG 2011 planning is coming together quite nicely. We have a great line-up of formal and informal presentations and discussions, posters, workshops and social activities planned for Sunday through Tuesday, September 25 – 27. There should be something
In the SAS/IML language, the index creation operator (:) is used to construct a sequence of integer values. For example, the expression 1:7 creates a row vector with seven elements: 1, 2, ..., 7. It is important to know the precedence of matrix operators. When I was in grade school,
