Interval Arithmetic for Nonlinear Problem Solving

Table 5

Results for Case 4.

Domain	Equations	Roots	Subset	Method
[0.30, 1]  𝑇	Redlich-Kwong-Soave equation of state	𝑇=0.48143566	168781	N
[0.275, 1]  𝑣	Mixture of methane and hydrogen sulfide	𝑣=0.56426799	829620	B
[0, 1]  Δ𝑛1	Find all of the critical points in the domain	Δ𝑛1=0.08460040
[−1, 1]  Δ𝑛2	𝑇 scaled by 600K	Δ𝑛2=−0.99641496
𝑥1=0.49 CH4	𝑣 scaled by 4b
𝑥2=0.51 H2S
		𝑇=0.34691664	237185	N
		𝑣=0.29124484	824978	B
		Δ𝑛1=0.6814699
		Δ𝑛2=−0.73189541
		𝑇=0.38612396	285239	N
		𝑣=0.36953418	779696	B
		Δ𝑛1=0.52293204
		Δ𝑛2=−0.85237438
			Total
			345733	N
			856970	B