Interval Arithmetic for Nonlinear Problem Solving

Table 2

Results for Case 1.

Domain	Equations	Roots	Subset	Method
[−100, 100]	𝑥1𝑥2^2+4𝑥1−4=0	𝑥1=−0.68443924	647	N
	𝑥^22+4𝑥1𝑥2−4=0	𝑥2=3.79247516	809	B
		𝑥1=0.465822965	654	N
		𝑥2=−3.13799232	814	B
		𝑥1=0.84600538	677	N
		𝑥2=0.92770308	819	B
			Total
			685	N
			820	B

N: IN/GB method, B: Bisection method.