NO

$\left(x^0,y^0\right)$

k

$\left(x^{\ast },y^{\ast }\right)$

$f\left(x^{*},y^{*}\right)$

$\Vert \text{d}{z}^k\Vert$

1

(0, 0)

13

(93.33333333333336,

26.66666666666664)

-3.266666666666669e+003

9.300000000000003e-012

2

(0, 0)

7

(5.00000000000006

9.99999999999994,

-0.00000000000000

0.00000000000000)

1.262177448353619e-029

1.010000000000000e-008

3

(0, 0)

3

(5.00000000000000, 9.00000000000000,

0.00000000000000,

0.00000000000000)

0

2.500000000000000e-009