A Plant Propagation Algorithm for Constrained Engineering Optimisation Problems

Table 6

Constrained optimization problem I.

Solution vector	GAs [36]	EP [37]	HSA [29]	PHS [27]	IPHS [27]	PPA [𝜇=𝐸4]	Optimal solution
𝑥1	0.8080	0.8350	0.8343	0.8230	0.8229	0.8298	0.8228
𝑥2	0.8854	0.9125	0.9121	0.9113	0.9113	0.9098	0.9114
𝑔1(𝑥)	3.7𝐸−2	1𝐸−2	5𝐸−3	1.1880𝐸−4	3.8744𝐸−5	7.8953𝐸−05	7.05𝐸−9
𝑔2(𝑥)	5.2𝐸−2	−7𝐸−2	5.4𝐸−3	3.5443𝐸−4	1.8967𝐸−4	9.1722𝐸−05	1.73𝐸−8
𝑓(𝑥)	1.4339	2.3772	1.3770	1.3931	1.3932	1.3774	1.3935