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Number of function evaluations

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2

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2

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4

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1e-20

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0

100

200

300

400

500

600

700

Minimal function value

Number of function-evaluations

The second test-function

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0

200

400

600

800

1000

1200

1400

1600

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5

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15

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Function value

Number of function evaluations

Linesearch

Trust region

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20

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1e-20

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1

0

100

200

300

400

500

600

700

Minimal function value

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Number of function-evaluations

The third test-function

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0.1

1

10

100

0

10

20

30

40

50

60

70

80

Function value

Number of function evaluations

Linesearch

Trust region

\ 7F9e©`:M;>=@ $_BABCEJGtEJIeGL`;S:M;uap©cbGM7FE3TvEJIeGL;wIS©`Tcdf G7FEJTxhHOJC½©;yjUkzN<GM;u;bQ;bN<G<f{a;uN<cu;bT"G|OJTa}aEJ9Hf~C;u9 G:&©`N<G:M;b937FE3T

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2

3

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Points which where sampled after 2 Iterations

-5

-4

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-2

-1

0

1

2

3

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2

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Points which where sampled after 3 Iterations

-5

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-2

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0

1

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4

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Points which where sampled after 4 Iterations

-5

-4

-3

-2

-1

0

1

2

3

4

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2

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Points which where sampled after 5 Iterations

-5

-4

-3

-2

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1

2

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4

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2

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Points which where sampled after 6 Iterations

-5

-4

-3

-2

-1

0

1

2

3

4

-5

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-3

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0

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2

3

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Points which where sampled after 7 Iterations

-5

-4

-3

-2

-1

0

1

2

3

4

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Points which where sampled after 8 Iterations

-5

-4

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Points which where sampled after 9 Iterations

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-3

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0

1

2

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The third test-function

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0.003

0.0035

0.004

0.0045

0.005

0.0055

0.006

0.0065

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500

1000

1500

2000

2500

3000

Function value

Number of function evaluations

IFFCO

DIRECT

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0.013

0.0132

0.0134

0.0136

0.0138

0.014

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500

1000

1500

2000

2500

3000

3500

Function value

Number of function evaluations

Data set 061695A

DIRECT

IFFCO

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0.0015

0.002

0.0025

0.003

0.0035

0.004

0.0045

0

200

400

600

800

1000

1200

1400

1600

1800

2000

2200

Function value

Number of function evaluations

Data set 062095c

DIRECT

IFFCO

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