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+// Scilab code Ex8.10 : Pg:335(2008)
+clc;clear;
+function [bini]= decimal_binary(ni) // Function to convert decimal to binary
+    bini = 0;
+    i = 1;
+    while (ni <> 0)
+      rem = ni-fix(ni./2).*2; 
+      ni = int(ni/2);
+      bini = bini + rem*i;
+      i = i * 10;
+    end
+endfunction   
+
+function [deci]= binary_decimal(ni) // Function to convert binary to decimal
+    deci = 0;
+    i = 0;
+    while (ni <> 0)
+      rem = ni-fix(ni./10).*10; 
+      ni = int(ni/10);
+      deci = deci + rem*2.^i;
+      i = i + 1;
+    end
+endfunction   
+
+// Function to convert a vector with binary elements to a binary number
+function vtob = vector_to_bin(vector)   
+    cnt = 1; vtob = 0;
+for i = 1:1:length(vector)
+    vtob = vtob + vector(i)*cnt;
+    cnt = cnt*10;
+end                  
+endfunction
+
+function bin_cmp = ones_cmp(bin)       // Function to perform ones complement
+    binc = zeros(5);
+    i = 1;
+    while(i <= 5)
+        rem = bin-fix(bin./10).*10; 
+        if rem == 1 then
+            rem = 0;
+        else
+           rem = 1;      
+        end
+         bin = int(bin/10);
+         binc(i)=rem;
+         i = i+1;
+    end 
+bin_cmp = vector_to_bin(binc); 
+endfunction
+
+function plus_one_res = twos_cmp(r)     // Function to perform twos complement
+    onec = zeros(5);
+    i = 1;
+    while(i <= 5)
+        rem = r-fix(r./10).*10; 
+        r = int(r/10);
+        onec(i)=rem;
+        i = i+1;
+    end       
+plus_one_res = vector_to_bin(onec);
+    plus_one_res = binary_decimal(plus_one_res)+1;
+endfunction
+
+function fr = check_result(res)     // Function to check the occurence of end-around carry
+    max_result = 11111;
+    if binary_decimal(res) > binary_decimal(max_result) then
+        fr = decimal_binary(twos_cmp(res));
+    else
+        fr = ones_cmp(res);
+    end
+endfunction
+
+sub = 11011;    // Initialize the first binary number
+men = 01101;    // Initialize the second binary number
+result = decimal_binary(binary_decimal(sub)+binary_decimal(ones_cmp(men)));
+final_result = check_result(result);
+printf("%5d - 0%4d = 0%4d", sub, men, final_result);
+
+// Result
+//  11011 - 01101 = 01110