OPROD is the jCommon module of jLab.

 OPROD  Outer product:  OPROD(X,Y)=X*CONJ(Y') 
 
    OPROD(X,Y) calculates the outer product of two column vectors X and Y. 
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    This is part of JLAB --- type 'help jlab' for more information
    (C) 2003--2015 J.M. Lilly --- type 'help jlab_license' for details