Thank you Rick, This is what I am trying to accomplish I have two matrices P=mXm V=mX1 and a saclar value m I am looking for a sas iml code to do the following Run a loop for 10 times say, to get the final result of F. where P=P at the befining for second run it should be p=P*P, and at the end (for 10) is should be p=p*p*p*p*p*p*p*p*p*p C=P*v; D=V+C; F=D*m;
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