An Improved Sparrow Search Algorithm and Its Application in HIFU Sound Field

Table 3

Fixed-dimension functions.

Functions	Dim	Range	Fmin
	2	[−65, 65]	1
	4	[−5, 5]	0.0003
	2	[−5, 5]	−1.0316
	2	[−5, 5]	0.398
	2	[−2, 2]	3
	3	[0, 1]	−3.86
	6	[0, 1]	−3.32
	4	[0, 10]	−10.1532
	4	[0, 10]	−10.4028
	4	[0, 10]	−10.5363