Xcos examples from textbooks and for blocksHEADmaster

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diff --git a/Working_Examples/83/CH14/EX14.1/example_14_1.sce b/Working_Examples/83/CH14/EX14.1/example_14_1.sce
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+//Chapter 14
+//Example 14.1
+//page 533
+//To estimate the values of the random variables x1 and x2
+clear;clc;
+
+H=[1 0;0 1;1 1];  //given matrix
+k=inv(H'*H)*H'; // from eq 14.9
+y=['y1';'y2';'y3'];
+k=string(k);
+x=[k(1,1)+y(1,1)+k(1,2)+y(2,1)+"+"+k(1,3)+y(3,1) ;k(2,1)+y(1,1)+"+"+k(2,2)+y(2,1)+"+"+k(2,3)+y(3,1)];
+printf('Estimate of x =\n');
+disp(x);
\ No newline at end of file
diff --git a/Working_Examples/83/CH14/EX14.1/result_example_14_1.txt b/Working_Examples/83/CH14/EX14.1/result_example_14_1.txt
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+++ b/Working_Examples/83/CH14/EX14.1/result_example_14_1.txt
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+ 
+Estimate of x =
+ 
+!0.6666667y1-0.3333333y2+0.3333333y3   !
+!                                      !
+!-0.3333333y1+0.6666667y2+0.3333333y3  !
+