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+//Clearing console
+clc
+clear
+
+//Intializing variables
+r(1) = sqrt(3)/3
+r(2) = -sqrt(3)/3
+s(1) = sqrt(3)/3
+s(2) = -sqrt(3)/3
+
+W(1) = 1
+W(2) = 1
+I = 0
+
+//Gaussian quadrature Integration
+for j =1:2
+ for i =1:2
+ I = I + W(i)*W(j)*((r(i))^3 -1)*(s(j)-1)^2
+ end
+end
+
+printf('\nResults')
+printf('\nIntegration of given function I =%f',-I)