Functions are sorted based on the optimizer's performance relative to other algorithms. The rank number on each image (e.g. #1) indicates its standing on that specific function compared to all other optimizers tested.

#4

Griewank

#8

QuantumWell

#9

Rastrigin

#14

Langermann

#15

Ackley

#20

Langermann 2

#21

GradientLabyrinth

#24

Gramacy & Lee 2D

#28

Weierstrass

#36

Beale

#37

Lévy 13

#42

NeuralCanyon

#47

Rosenbrock

#50

Styblinski-Tang

#55

EggHolder

#59

Goldstein-Price