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+clc; funcprot(0);
+//Example 10.8 Best lift distribution in biplane
+
+// Initialisation of variables
+b1 = 30;
+b2 = 27;
+gap = 4.5;
+S = 400;
+
+// Calculations
+mu = b2/b1;
+gapBYmeanspan = 2*gap/(b1+b2);
+sigma = 0.538;        //From fig 10.10
+r = (mu^2-sigma*mu)/(1-sigma*mu);
+S1 = r*S;
+S2 = S - S1;
+C1 = S1/b1;
+C2 = S2/b2;
+EMAR = (b1^2/S)*(1 - 2*sigma*mu + mu^2)/(1-sigma^2) ;
+
+//Results 
+disp(EMAR,"EMAR when total area is 400 sq-ft :",r, "Ratio of areas of lower to upper wing " );
+\ No newline at end of file