Composite Gauss-Legendre Formulas for Solving Fuzzy Integration

Table 3

Numerical solutions and errors between different methods (ℎ=0.25).

Methods	Numerical solution	Error
Trapezoidal formula	0.63540943(−1+𝑟,1−𝑟)	0.00328888
Simpson formula	0.63212141(−1+𝑟,1−𝑟)	0.00000086
Two-point Gauss-L	0.63211998(−1+𝑟,1−𝑟)	0.00000057
Three-point Gauss-L	0.63212055(−1+𝑟,1−𝑟)	0.00000000