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

Weierstrass

#6

NeuralCanyon

#9

Beale

#10

Langermann

#25

EggHolder

#26

QuantumWell

#29

Rosenbrock

#30

Langermann 2

#32

Rastrigin

#34

Ackley

#34

Griewank

#36

Gramacy & Lee 2D

#39

Lévy 13

#48

Styblinski-Tang

#56

GradientLabyrinth

#64

Goldstein-Price