question: private double [ ] [ ] createInitialSimplex ( double [ ] initial ) { double [ ] [ ] points = new double [ initial . length + 1 ] [ ] ; for ( int i = 0 ; i < points . length ; i ++ ) { points [ i ] = new double [ initial . length ] ; } System . arraycopy ( initial , 0 , points [ 0 ] , 0 , initial . length ) ; for ( int i = 1 ; i < points . length ; i ++ ) { System . arraycopy ( initial , 0 , points [ i ] , 0 , initial . length ) ; points [ i ] [ i - 1 ] += lambda ; } return points ; }
target:  Create initial n+1 simplex points using given initial point for point[0] and setting all other points to  point[0] + lambda+unit_vector_(i-1]