A Global Optimization Algorithm for Signomial Geometric Programming Problem

Table 2

The numerical results for Examples 5–10.

Example		Optimal solution	Optimal value	Iter	𝜀
5	Ours	(78.0, 33.0, 29.9957, 44.9999, 36.7753)	10122.4932	92	10^−1
	[22]	(78.2135, 33.2135, 29.6588, 44.757, 37.6808)	10088.51	122	10^−1
	[21]	(78, 32.9999,…,29.9957,…,45, 36.7753,…)	10122.4931,…	341	10^−1
	[33]		10122.3811,…	204	10^−1
	[24]	(78, 32.99998, 29.99737, 45, 36.77533)	10122.85643	324	10^−4
6	Ours	(175.3433, 74.119872, 219.9999)	5651.37804758	2319	10^−6
	[24]	(109.32546781, 84.04821454, 214.32459429)	6217.46548921	612	10^−8
	[21]	(108.734706796, 85.126214158, 204.32459429)	6299.842427922	550
	[34]	(107.4, 84.9, 204.5)	6300.00
7	Ours	(0.9999, 0.18181812, 0.98333213)	−10.363636	837	10^−6
	[24]	(0.99712235, 0.18184214, 0.98034321)	−10.305022,…	3	10^−8
8	Ours	(8.037732, 8.9999, 9, 9, 9, 1, 1, 1.15686, 1.15686, 1.15686, 50, 0, 1, 50, 50, 0)	156.2196	67	10^−5
	[22]	(8.03772, 9, 9, 9, 9, 1, 1, 1.1568, 1.1568, 1.1568, 50, 0, 1, 50, 50, 0)	156.2196	3	10^−5
9	Ours	(5.0, 0.021584, 0.044603, 5.0)	5.8894162	3	10^−1
	[22]	(4.99671, 0.02158, 0.044603, 4.99584)	5.888618	12097	10^−1
10	Ours	(5.0, 5.0, 0.13996, 1.177798, 0.94773)	28660.8648	2831	10^−1
	[22]	(4.992904, 4.99136, 0.1460728, 1.173758, 0.95455)	28745.107539	12014	10^−1