I am studying with Introduction to the use of SMath Studio Prepared by Gilberto E. Urroz, May 2010.




but i try to this,
result is

rS=mat(-2.5,-2.5,-2.5,-2.5,-2.5,4.1,1,6)






what is problem?

Hi. You have j := rS[k,1]



Best regards.
Alvaro