code: public T plus( double b ) {
          T ret = createLike();
          ops.plus(mat,b,ret.mat);
          return ret;
      }
docs: <p>
  Returns the result of scalar addition:<br>
  <br>
  c = a + b<br>
  <br>
  where c is the returned matrix, a is this matrix, and b is the passed in double.
  </p>
  
  @see CommonOps_DDRM#add( DMatrixD1, double , DMatrixD1)
  
  @param b Value added to each element
  
  @return A matrix that contains the results.