Cultural Emperor Penguin Optimizer and Its Application for Face Recognition

Table 3

The details of six test benchmark functions.

No.	Function	Formulation		Search range
F1	Sphere		10
F2	Schwefel 2.22	()	10
F3	Rastrigin	()	10
F4	Griewank	()	10
F5	Ackley	()	10
F6	Schaffer	()	2