Solving unconstrained function using with active set algorithm

[flwra_]

How to solve this function by using two initial points. Kindly assist.

[Ksharp]

I think you should post your question at

IML form

https://communities.sas.com/t5/SAS-IML-Software-and-Matrix/bd-p/sas_iml

or OR form

https://communities.sas.com/t5/Mathematical-Optimization/bd-p/operations_research

@Rick_SAS  @RobPratt  could give you a hand .

[RobPratt]

There is not enough information to solve this problem.  What are A and n?

In any case, you should use PROC OPTMODEL with the NLP solver:

solve with nlp / algorithm=activeset;