Temperatures as accounted in the first layers (the surface) and the center of the heated body at each iteration of the computing process:

 

Temperature in

first layer

Temperature in

center

difference

50

50

50

50.0001

50.0004

50.0009

50.0016

50.0026

50.0056

50.0095

50.0143

50.0199

50.0279

50.0365

50.0457

50.0552

50.0648

50.0817

50.0988

50.116

50.1333

50.1506

50.1679

50.2077

50.2476

50.2804

50.3132

50.346

50.3789

50.4118

50.4447

50.5688

50.6934

50.8185

50.9441

51.0702

51.562

52.0619

52.5704

53.0878

53.6145

54.7717

55.9746

57.225

58.5239

59.8717

61.3436

62.8692

64.4473

66.0767

67.7554

69.9217

72.1585

74.4618

76.827

79.2498

82.844

86.5366

90.3156

94.17

98.0894

105.0872

112.2109

119.4222

126.6898

133.9879

152.0586

169.9581

187.5442

204.748

221.5377

247.9285

273.1879

297.3611

320.5087

342.6955

389.2903

431.9877

471.3347

507.7825

541.7037

597.3089

647.1844

692.4432

733.9062

772.201

829.3043

880.8304

927.852

971.3372

1011.7439

1051.9766

1089.4579

1124.6035

1157.6849

1188.8823

1251.8639

1307.766

1357.6445

1402.2891

1442.3226

1504.9046

1556.5997

1599.4976

1635.1788

1664.9252

1705.7206

1735.2913

1756.9246

1772.8025

1784.408

1796.3048

1803.6839

1805.8094

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50.0001

50.0001

50.0001

50.0002

50.0002

50.0003

50.0004

50.0005

50.0008

50.0011

50.0015

50.002

50.0026

50.004

50.0059

50.0085

50.0119

50.0162

50.0319

50.0569

50.0941

50.1469

50.2187

50.3858

50.63

50.9685

51.4188

51.9981

53.8512

56.6101

60.4242

65.4123

71.6593

86.1974

105.044

128.0416

154.8317

184.9309

239.9997

300.1606

363.2337

427.3972

491.2546

558.2737

622.9806

684.8859

743.7379

799.4477

911.7372

1009.9472

1095.8177

1171.2007

1237.6569

1339.3869

1421.62

1488.7395

1543.8662

1589.3244

1651.1107

1695.7289

1728.1869

1751.8406

1769.0962

1786.7228

1797.6962

1800.8493

0

1.33E-05

4.20E-05

8.67E-05

0.0003834

0.0008993

0.0016383

0.0025985

0.005566

0.0095269

0.014339

0.019851

0.027861

0.03655

0.045699

0.055157

0.064823

0.081699

0.098796

0.11602

0.13329

0.1506

0.16792

0.20772

0.2476

0.28038

0.31318

0.346

0.37886

0.41176

0.44469

0.56879

0.69337

0.81847

0.94407

1.0702

1.562

2.0619

2.5704

3.0878

3.6145

4.7717

5.9746

7.225

8.5239

9.8717

11.3436

12.8691

14.4473

16.0766

17.7553

19.9216

22.1583

24.4615

26.8266

29.2493

32.8433

36.5356

40.3142

44.168

48.0868

55.0832

62.2049

69.4137

76.6779

83.9717

102.0267

119.9012

137.4501

154.6011

171.319

197.5426

222.5579

246.3926

269.09

290.6974

335.4391

375.3776

410.9104

442.3702

470.0443

511.1115

542.1405

564.4016

579.0745

587.27

589.3047 max

580.6698

564.6183

543.94

520.4893

493.7029

466.4774

439.7175

413.9469

389.4346

340.1267

297.8188

261.8268

231.0884

204.6657

165.5177

134.9797

110.7581

91.3126

75.6008

54.6099

39.5624

28.7377

20.9619

15.3118

9.5821

5.9877

4.9602