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Table 3 Comparative studies of the results of proposed methodologies for Problem I

From: Bio-inspired computational heuristics to study Lane–Emden systems arising in astrophysics model

X

Exact

Reported solution

Proposed approximated solution \(\hat{y}({\text{x}})\)

y(x)

Analytical result

ChNN (Mall and Chakraverty 2014)

SQP

PS

GA

PS-SQP

GA-SQP

0

1.000000

1.0000

1.0000

1.000000

1.000001

1.000037

1.000000

1.000000

0.1

0.998333

0.9983

0.9993

0.998349

0.998322

0.998451

0.998224

0.998339

0.2

0.993333

0.9933

0.9901

0.993376

0.993513

0.993512

0.993197

0.993341

0.3

0.985000

0.9850

0.9822

0.985053

0.985395

0.985151

0.984859

0.985006

0.4

0.973333

0.9733

0.9766

0.973380

0.973868

0.973433

0.973186

0.973341

0.5

0.958333

0.9583

0.9602

0.958369

0.958901

0.958420

0.958184

0.958341

0.6

0.940000

0.9400

0.9454

0.940032

0.940514

0.940122

0.939851

0.940007

0.7

0.918333

0.9183

0.9134

0.918369

0.918761

0.918511

0.918183

0.918340

0.8

0.893333

0.8933

0.8892

0.893375

0.893700

0.893543

0.893182

0.893340

0.9

0.865000

0.8650

0.8633

0.865044

0.865370

0.865192

0.864848

0.865007

1

0.833333

0.8333

0.8322

0.833373

0.833750

0.833480

0.833181

0.833340