code: public T elementPower( double b )
      {
          T c = createLike();
          ops.elementPower(mat,b,c.mat);
          return c;
      }
docs: <p>
  Returns a matrix which is the result of an element by element power of 'this' and 'b':
  c<sub>i,j</sub> = a<sub>i,j</sub> ^ b
  </p>
  
  @param b Scalar
  @return The element by element power of 'this' and 'b'.